Question

An element X has 9 protons and 9 electrons, it gains one electron to form an ion.
i. Name the element.
ii. Write its atomic number.
iii. What will be the number of protons in the ion that is formed?
iv. What will be the charge on the ion?

Answer 1

Answer:

1.Fluorine

2.9

3.9

4.Negative

Answer 2

Answer:

i) Fluorine

ii) Atomic number = no. of protons = 9

iii) No. of protons is always constant, even after ion formation, so here it will be 9

iv) As it is a non-metal and requires 1 electron to get electronic configuration of inert gas. So, it will be form F^-1 ion

hope this will help you