Maharashtra Board Solutions for Chapter: Inside the Atom, Exercise 12: Use your brain power
Maharashtra Board General Science Solutions for Exercise - Maharashtra Board Solutions for Chapter: Inside the Atom, Exercise 12: Use your brain power
Attempt the practice questions on Chapter 5: Inside the Atom, Exercise 12: Use your brain power with hints and solutions to strengthen your understanding. General Science solutions are prepared by Experienced Embibe Experts.
Questions from Maharashtra Board Solutions for Chapter: Inside the Atom, Exercise 12: Use your brain power with Hints & Solutions
What is meant by the atomic number (Z) of an element?
Atomic numbers (Z) of some elements are given here. Write down the number of electron present in the outermost shell of each of them.
| Element | H | C | Na | Cl | N |
| Z | 1 | 6 | 11 | 17 | 7 |
|
Number of electrons in the outermost shell |
The number of electrons of some elements is given here. By using it write the electronic configuration, number of valence electron and valency of the respective elements.
| Element | Li | C | Mg | O |
| Number of electrons | 3 | 6 | 12 | 8 |
| Electronic configuration | ||||
| Number of valence electrons | ||||
| Valency |
Why are the atomic numbers and atomic mass numbers always in whole numbers?
Sulphur contains protons and neutrons. What would be its atomic number and mass number?
