Question

Elements

Mass Number

Atomic Number

A

2

1

B

3

1

C

3

2

D

6

3

E

9

4

F

11

.5

G

19

9

H

23

11

а) How many neutrons are present in ‘F’?

b) Which atoms are isotopes of the same element?

c) Which atom will form singly positively charged ion?

d) Which is the atom of an inert gas?

e) Which will form singly negatively charged ion?

f) Which of these has 11 electrons?​

Answer 1

Answer:

answer of this question is h

Answer 2

Answer:

A) 10 neutrons

Explanation:

Atomic mass of F is 19 and atomic number/ number of protons = 9

so, number of neutrons = 19-9

= 10