Question

D. Write 'true' or 'false' for the following statements : True/False Statement
1. Helium is the only gas which has 2 electrons in its valence shell.
2. c denotes that element carbon has mass number of 6 and atomic number 12.
3. K-shell of an atom can accommodate maximum of eight electrons.
4. The number of neutrons in an atom of 17ci are 17
5. Electronic configuration of all isotopes of an element is different​

Answer 1

Answer:

1) true

2) true

3) false

4) sorry i don't know

5) true