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6 electron in L shell Element=Carbon (C) Atomic number=6 Valency=4 because outermost shell called valency This is non-metal This is a non-metal because 4,5,6 in outermost shell

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Noob . 2 years, 10 months ago

(•‿•)

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Noob . 2 years, 10 months ago

A) CARBON B)6 C)4

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The description of atomic particles of two elements 'X' and 'Y' is given below. Protons X 8 Neutrons 8 9 Electrons 8 8 a) What is the atomic number of 'Y'? b) What is the mass number of 'X'? c) What is the relation between 'X' and 'Y'? d) Which element/elements do they represent? e) Write the electronic configuration of 'X'. f) Write the cation /anion formed by the element. Y 8

Posted by Khushi Aggarwal 2 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Predict the valency og 1)z=4 2)z=11 3)z=19

Posted by Khushi Aggarwal 2 years, 10 months ago

CBSE > Class 09 > Science

0 answers

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One electron is present in the outermost shell of an atom of element z What will be the value of charge which is formed of Z ion

Posted by Khushi Aggarwal 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Ravidutt Sharma 2 years, 10 months ago

One electron present in the outermost shell called valency example sodium (na) Z=mass number of element

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Ch 2 crystal

Posted by Mathura Rathore 2 years, 10 months ago

CBSE > Class 09 > Science

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who newton predicted the inverce square variation

Posted by Rajnish Kumar 2 years, 10 months ago

CBSE > Class 09 > Science

2 answers

V A 2 years, 9 months ago

Sir Isaac Newton

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Reehan Khan 2 years, 10 months ago

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IN CARBON DIOXIDE CARBON AND OXYGEN ARE PRESENT IN THE RATIO OF

Posted by Soham Kore 2 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Ravidutt Sharma 2 years, 10 months ago

Carbon atomic number is=6 Oxygen atomic number is=8 6:8=3:4

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Subhra Mishra 2 years, 10 months ago

3:1

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Arpan Singh 2 years, 10 months ago

Carbon 2 and oxygen 1

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Chapter 5 activity 2.1 describe

Posted by Soumyadip Sarkar 2 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Difference between centripetal force and gravitational force

Posted by Tanishka Gupta 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Vansh Pratap 2 years, 10 months ago

Gravitation is the force of attractiion between two objects in the universe

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ANSWER

Name the disease causing agents of kalazar, acne ,sleeping sickness and pactic ulsar?

Posted by Anjali Setia 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Vansh Pratap 2 years, 10 months ago

Protozoa

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What is health and the basic need of health

Posted by Ayush Ranjan 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Niraj Das Paswan 2 years, 10 months ago

Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity,and the basic need of health are food (including water), shelter and clothing.

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Prove the second law of equation of motion

Posted by Sachin Kumar 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Shital Kumari 2 years, 10 months ago

* s=ut+1/2at^2 Since, average velocity =u+v/2 = u+u+at/2 = 2u+at/2 Distance travelled = speed × time s = v × t = (2u + at/2) × t = 2ut + at^2/2 = 2ut/2 + at^2/2 = ut + 1/2 at^2 ( proved )

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How many grams of potassium chloride is present in 250 gram of saturated solution

Posted by Shravasti Salve 2 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

what is chlorenchyma

Posted by Sanjay Singh 2 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Deepak Singh 9B 2 years, 10 months ago

Chlorenchyma is the part of parenchyma and chlorenchyma contains chlorophyll and this perform photosynthesis

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Pratibha Pramod Pillai 2 years, 10 months ago

Parenchyma with chrlorophyll that aids in photosynthesis is called parenchyma

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Divyashree Bk 2 years, 10 months ago

In some plant parts , parenchyma had chlorophyll and carries out photosynthesis . This type of parenchyma is called as chlorenchyma . Eg : Mesophyll layer in leaves

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A motor car is going with a velocity 10m/s. Motor of the car is 250 kg. Q1. How much force will be applied by the brakes on the car to it at 25m away. Q2. In how much time the car will come to rest by applying above force

Posted by Tanu Som 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Tanu Som 2 years, 10 months ago

Now please give me a answer

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I have one question

Posted by Tanu Som 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Misha Mahawan 2 years, 10 months ago

Ask

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Which of the following statements is false for a body in motion? a) The object covers equal distances in equal intervals of time, then it is said to be in uniform motion. b) The numerical ratio of displacement to distance for a moving object is always more than 1. c) Velocity-time graph of the body can be parallel to time axis. d) The body can be moving with uniform speed but with acceleration.

Posted by Vinisha Maria Montheiro 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Itz_Khushi ❣️ 2 years, 10 months ago

I think option (b) is false

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ANSWER

Define Derivation.

Posted by Varisha Dhiman 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Deepak Singh 9B 2 years, 10 months ago

Derivation is derivation ?

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ANSWER

Differences between meristematic and parmanent

Posted by R K 2 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Divyashree Bk 2 years, 10 months ago

Meristematic tissues comprise of immature cells that are in a continuous state of division while the permanent tissues comprise of mature Meristematic cells which lost the ability to divide and transformed into permanent tissues by the process of cell differentiation

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Tanu Som 2 years, 10 months ago

Meristematic tissue Cell is divided and growth of divided cell is permanent tissue Permanent tissue Cell is not divided

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ANSWER

What is the powerhouse of a cell

Posted by Yashraj Singh 2 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Bhagyashri Patkari 2 years, 10 months ago

Mitochondria

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Tanu Som 2 years, 10 months ago

Mitochondria

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Vk Vk 2 years, 10 months ago

Mitochondria

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Vinisha Maria Montheiro 2 years, 10 months ago

Mitochondria

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Kanishk Kumar 2 years, 10 months ago

Mitochondria

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A machine gun fires a bullet of mass 40 g at a speed of 1200m/s. The man holding it can exert a maximum force of 144N on the gun.How many bullet can he fire per second at the most? a) one b) four c) two d) three

Posted by Pranshu Sinha 2 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Pranshu Sinha 2 years, 9 months ago

U are right

1Thank You

Ritik Si 2 years, 10 months ago

2÷3×6+2-8

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ANSWER

A football player kicks a 350g ball(at rest) and gives it an initial speed of 28m/s. Find the magnitude of average force exerted by the player if the impact time is 12ms.

Posted by Vandana B 2 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What I'd ill

Posted by Kapil M 2 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Misha Mahawan 2 years, 10 months ago

Mean

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Itz_Khushi ❣️ 2 years, 10 months ago

Question

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Yukti Tandi 2 years, 10 months ago

Matlab kya chahiye

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ANSWER

Science homework

Posted by Barhan Ahmed 2 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Itz_Khushi ❣️ 2 years, 10 months ago

Meter per second ,m/s

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Tanisha Negi 2 years, 10 months ago

What is the unit of velocity

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ANSWER

State the universal law of gravitational

Posted by Nishat Aman 2 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Deepika Mb 2 years, 10 months ago

Every body in the universe attracts every other body with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

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Barhan Ahmed 2 years, 10 months ago

Barhan Ahmed

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ANSWER

Explain third law of newton

Posted by Ishani Patel 2 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Ravidutt Sharma 2 years, 10 months ago

The Newton's third law explain we that's like we force on a table of 5 Newtons so that table also will will force on in our hand 5 N show the third law of Newton explain for every action there is equals and opposite reaction v force on table 5 Newton and table will be force on also 5 Newton so that's the Newton's third law explain with this

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Aman Harsh 2 years, 10 months ago

In third law of motion, no time delay mean if you give action currently give you reaction

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Suhas Suvi 2 years, 10 months ago

for every action there is a equal and opposite reaction

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Gaurav Tripathi 2 years, 10 months ago

In states that, whenever one object exerts a force on another object, then the second object exerts an equal and opposite force on the first object.

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Supreet Kaur Supreet Kaur 2 years, 10 months ago

Newton's third law states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. The third law is also known as the law of action and reaction. ... If a body has a net force acting on it, it undergoes accelerated motion in accordance with the second law.

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