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  • 3 answers

Ammar Ahmad 4 years, 10 months ago (10883696)

True

Subham Pani 4 years, 10 months ago (9851374)

True

Devajyoti Mandal 4 years, 10 months ago (9583110)

True
  • 5 answers
4kg=4000g 4000÷200=20 Ans-20 packets of 200g

Priyanshu Gupta 4 years, 10 months ago (7643049)

40 packets

Soumya Yadav 4 years, 10 months ago (10537458)

20 packets

Rudra Yadav 4 years, 10 months ago (10875581)

10 packets

Hp Asmith 4 years, 10 months ago (10671862)

2 packets
  • 0 answers
  • 1 answers

Vidharshana Yathra Prakkash 4 years, 10 months ago (8899927)

MASS NO: THE SUM OF PROTOAN AND NEUTRON ATOMIC NO:NO OF ELECTRONS PRESENT IN A NUCLEUS
http://mycbseguide.com/examin8/
  • 1 answers

Ankush Raj Pathak 4 years, 10 months ago (10729531)

Ans
  • 1 answers

Siddhi Shingar 4 years, 10 months ago (8981939)

Graham
  • 2 answers

Pawandeep Kaur 4 years, 10 months ago (9682243)

Johnsy thought she would die when the last leaf fell. Sue thought of an idea . She asked an old painter to paint an ivy leaf on the wall. When Johnsy woke up next morning , she saw one last leaf on the ivy . She could not know that it was not a real leaf . The leaf did not fall in spite of heavy rain and wind . Johnsy regained her will to live.

Priyansh Guru 4 years, 10 months ago (9770480)

Dxx
  • 3 answers

Jasjeet Singh 4 years, 9 months ago (10989389)

200000 × 500 = 10000000.

Soumyashree Paital 4 years, 10 months ago (9240553)

20000 x 500 = 10000000

Devansh Op 246 Singh 4 years, 10 months ago (7591669)

2000 ×500=10000000
  • 2 answers

Jasjeet Singh 4 years, 9 months ago (10989389)

1 Crore Denotes 10 Million (10,000,000 in International Way and 1,00,00,000 in the Indian Way)(Denotes 107 in Scientific Notation) Its Indices Form is 10^7 (10 to the Power of 7.) Which Is Only Used in the Indian System and is same as 100 Lakh.

Soumyashree Paital 4 years, 10 months ago (9240553)

A crore , karor or koti denotes ten million (10,000,000 or 107 in scientific notation) and is equal to 100 lakh in the Indian numbering system.
  • 3 answers

Rishab Singh 4 years, 10 months ago (10663939)

A way in which two persons exchange thier views and data is called communication

Alzaid Monis 4 years, 10 months ago (10780244)

One person can send a message to any other person is called communication

Prince Chauhan 4 years, 10 months ago (9478079)

Communication means being well to tell other people what you want to say.
  • 2 answers

Augustya Choudhary 4 years, 10 months ago (10881750)

100+50+2+0.000+0.080+0.081=152.081

Aaryav Bhardwaj 4 years, 10 months ago (10339608)

100+50+2+0.08+0.001 I didn't include 0.0 as 0.0=0
  • 1 answers

Sajanjeet Singh 4 years, 10 months ago (10933670)

Hnji
  • 2 answers

Ankit Singh? 4 years, 10 months ago (10559236)

Here you will get your answer with explanation ?

Ankit Singh? 4 years, 10 months ago (10559236)

https://itsourcecode.com/free-projects/python-projects/book-store-management-system-python-project-with-source-code/
  • 0 answers
  • 1 answers

Minu Dalei 4 years, 10 months ago (10099815)

Calculate the work done by the person in lifting the box
  • 0 answers
  • 1 answers

Saurabh Kumar 4 years, 10 months ago (10890623)

5
  • 1 answers

Nayan Satapathy 4 years, 10 months ago (9827997)

Word processor have infinite features to be explained. But you can use those to explain:- - Thesaurus - inserting images - changing font styles - find and replace words - create tables Etc.
  • 1 answers

Asit Gupta 4 years, 10 months ago (6751684)

Scavengers: Animals or birds that feed on animals. Decomposers: Organisms that break down dead and decaying plants and animals matter.
  • 2 answers

Harshit Shinde 4 years, 10 months ago (6429561)

I think the people who are lazy do this because they don't have to work so they say. I am dump

Hifza Parkar 4 years, 10 months ago (10794199)

Thats what i was wondering too...Maybe you should ask yourself: "Am I dumb or do I act like one?"...You'll definitely get your answer :)
  • 3 answers

Harpreet Singh 4 years, 10 months ago (10307169)

The electron cloud model is currently the most sophisticated and widely accepted model of the atom. It retains the concept of the nucleus from Bohr and Rutherford's models, but introduces a different definition of the motion of electrons around the nucleus.

Harpreet Singh 4 years, 10 months ago (10307169)

1. How do electrons move in Bohr’s model? Ans: The theory notes that electrons in atoms travel around a central nucleus in circular orbits and can only orbit stably at a distinct set of distances from the nucleus in certain fixed circular orbits. Such orbits are related to certain energies and are also referred to as energy shells or energy levels. 2. How did Bohr discover electrons? Ans: Bohr was the first to discover that electrons move around the nucleus in different orbits and that an element’s properties are determined by the number of electrons in the outer orbit. 3. Did Bohr’s model have neutrons? Ans: The nucleus in the atom’s Bohr model holds most of the atom’s mass in its protons and neutrons. The negatively charged electrons, which contribute little in terms of mass, but are electrically equivalent to the protons in the nucleus, orbit the positively charged core. 4. How did Sommerfeld modify Bohr’s theory? Ans: Many modifications have been introduced to the Bohr model, most notably the Sommerfeld model or Bohr – Sommerfeld model, which suggested that electrons move around a nucleus in elliptical orbits rather than circular orbits of the Bohr model. The Bohr – Sommerfeld system was essentially incoherent, contributing to many paradoxes. 5. Who discovered electrons? Ans: J. J. Thomson in 1897 discovered Electron when he was studying the properties of the cathode ray.

Harpreet Singh 4 years, 10 months ago (10307169)

Bohr model of the atom was proposed by Neil Bohr in 1915. It came into existence with the modification of Rutherford’s model of an atom. Rutherford’s model introduced the nuclear model of an atom, in which he explained that a nucleus (positively charged) is surrounded by negatively charged electrons. Bohr modified this atomic structure model by explaining that electrons move in fixed orbitals (shells) and not anywhere in between and he also explained that each orbit (shell) has a fixed energy level. Rutherford basically explained the nucleus of an atom and Bohr modified that model into electrons and their energy levels. Bohr’s model consists of a small nucleus (positively charged) surrounded by negative electrons moving around the nucleus in orbits. Bohr found that an electron located away from the nucleus has more energy, and electrons close to the nucleus have less energy. Postulates of Bohr’s Model of an Atom In an atom, electrons (negatively charged) revolve around the positively charged nucleus in a definite circular path called orbits or shells. Each orbit or shell has a fixed energy and these circular orbits are known as orbital shells. The energy levels are represented by an integer (n=1, 2, 3…) known as the quantum number. This range of quantum number starts from nucleus side with n=1 having the lowest energy level. The orbits n=1, 2, 3, 4… are assigned as K, L, M, N…. shells and when an electron attains the lowest energy level, it is said to be in the ground state. The electrons in an atom move from a lower energy level to a higher energy level by gaining the required energy and an electron moves from a higher energy level to lower energy level by losing energy. Limitations of Bohr’s Model of an Atom Bohr’s model of an atom failed to explain the Zeeman Effect (effect of magnetic field on the spectra of atoms). It also failed to explain the Stark effect (effect of electric field on the spectra of atoms). It violates the Heisenberg Uncertainty Principle. It could not explain the spectra obtained from larger atoms.
  • 1 answers

Pawandeep Kaur 4 years, 10 months ago (9682243)

That we have to be stronger
  • 2 answers

Sapna Rajak 4 years, 10 months ago (5353914)

narmada magadha garo hills ganga valley

Sapna Rajak 4 years, 10 months ago (5353914)

Match the following
  • 1 answers

Prashant Kushwah 4 years, 10 months ago (10348166)

type on YOU TUBE "class 7 Sanskrit Ch-2 solution"

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