Question

write the complete symbol for the atom
with the given atomic number (Z)
and atomic mass (A)
i z = 18, A=40
(i) z=26, A=56
(ii) z = 17 A=35.5
​

Answer 1

Answer:

1) Argon

2) Iron

3) chlorine

Explanation:

1). 40Ar18

2). 56Fe26

3). 35.5Cl17

Answer 2

Answer:

z=18,A=40

Explanation:

the smallest particle of an element, which may or may not have independent existence but always takes part in a chemical reaction is called atom