CBSE > Class 09 > Science | CBSE Board | Homework Help

The weight of an object is 1/6th than that of on Earth. So, 40/6 = 6.7 (approx) kg. Therefore, the weight will be 6.7 kg of an object which has a weight of an object on moon of the weight is 40 kg on Earth.

2Thank You

ANSWER

Why cytoplasm and nucleus

Posted by Satish Goyal 3 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 3 years, 11 months ago

(a) Cytoplasm: It is a fluid that fills the cell and occurs between the plasma membrane and the nucleus. Cell organelles such as mitochondria, ribosomes, Golgi bodies, etc. are suspended in the cytoplasm. The cytoplasm helps in the exchange of materials between cell organelles.

(b) Nucleus of a cell: Nucleus is the master of the cell. It commands all the functioning of the cell. It is generally located in the center of the cell and is spherical in shape. A membrane called nuclear membrane separates it from cytoplasm. It contains the genetic material DNA and RNA in it. This porous membrane allows the transfer of material in the nucleus and cytoplasm. Nucleus contains a dense body called Nucleolus which actually contains chromosomes, the genetic material.

0Thank You

ANSWER

Vivaan agarwal

Posted by Vivaan Agarwal 3 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Vivaan agarwal

Posted by Vivaan Agarwal 3 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

yaa

Posted by Sakshi Jagtap 3 years, 11 months ago

CBSE > Class 09 > Science

5 answers

Sakshi Jagtap 3 years, 11 months ago

mere bf ke kasam

0Thank You

Sakshi Jagtap 3 years, 11 months ago

nahi karungi g

0Thank You

Sahil Singh 3 years, 11 months ago

Khai aap na manna kar diya toh

0Thank You

Sakshi Jagtap 3 years, 11 months ago

yaa absolutely

0Thank You

Sahil Singh 3 years, 11 months ago

Soon we will meet

0Thank You

ANSWER

sorry

Posted by Sakshi Jagtap 3 years, 11 months ago

CBSE > Class 09 > Science

5 answers

Sahil Singh 3 years, 11 months ago

???

1Thank You

Sakshi Jagtap 3 years, 11 months ago

0Thank You

Sahil Singh 3 years, 11 months ago

0Thank You

Sakshi Jagtap 3 years, 11 months ago

plzz maan jao na

0Thank You

Sahil Singh 3 years, 11 months ago

Kya sorry

0Thank You

ANSWER

Hmm.....

Posted by Sahil Singh 3 years, 11 months ago

CBSE > Class 09 > Science

5 answers

Sakshi Jagtap 3 years, 11 months ago

but y

0Thank You

Sakshi Jagtap 3 years, 11 months ago

okk

0Thank You

Sahil Singh 3 years, 11 months ago

Aap 11:15 pa online hona OK

0Thank You

Sahil Singh 3 years, 11 months ago

Bye....lagta ha aap Abhi busy ho

0Thank You

Sahil Singh 3 years, 11 months ago

Busy ho kya

0Thank You

ANSWER

How to learn valancy

Posted by Unknown . 3 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Unknown . 3 years, 11 months ago

Thank you very much friend

0Thank You

Yogita Ingle 3 years, 11 months ago

Valency

It is the ability of an atom to gain or lose electron in order to achieve the noble gas configuration. It refers to the ability of an element to combine with other element. It is obtained by determining the number of electrons in the outermost shell (also called valence shell) of each atom of an element. For instance, sodium has 1 electron in its outermost shell and hence valency of sodium is 1.

Atomic number of sodium is 11. So the electronic configuration stands out to be 2,8,1 i.e. there is one electron in the outermost shell. In order to gain inert gas configuration it is better for sodium to lose one electron and achieve the nearest noble gas configuration of neon with atomic number 10.

On the other hand atomic number of chlorine is 17. So electronic configuration stands out to be 2,8,7. In order to achieve noble gas configuration to become stable it requires one electron then it will acquire the configuration of neon (noble gas). Therefore valency of chlorine is1.

1Thank You

ANSWER

15 to 20 days

Posted by Sakshi Jagtap 3 years, 11 months ago

CBSE > Class 09 > Science