Question

22
18. (a) What is meant by "atomic number of an element
(b) Complete the table given below:
No. of
No. of
No. of Atomic Mass
Protons Electrons Neutrons number number
35
17
3701
37
17
(C) Write down the electronic configuration of (1) chlorine
atom (ii) chloride ion.​

Answer 1

Answer:

a) atomic number of element refers to the number of protons present in the nucleus of the cell

b) 1)no. of protons=17 no. of electron=17 no. of nutrons=18 atomic no.=17 mass no.=35

2)no. of protons=17 no. of electron=17 no. of nutrons=20 atomic no.=17 mass no.=37

c)1) electronic configuration of cl=2,7

2)electronic configurations of cl-=2,8

Answer 2

Answer:

above answer is correct....