Question

Fill in the following blanks in respect of an atom of an element No. of protons
No. of neutron
Mass number
Atomic number
No. of electrons
Symbol
11
12
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Answer 1

Answer:

Symbol : 11 - Sodium (Na)

ATOMIC NO. -11

NO. OF ELECTRONS - 11

MASS NO. - 23

NO. OF PROTONS = NO. OF ELECTRONS

THEREFORE NO. OF p+ = 11

No. of neutrons = Mass no. - No. of protons

= 23-11

= 12

12 - Magnesium (Mg)

Atomic no. - 12

No. Of Electrons - 12

No of protons - 12

No. of neutrons - 12

Mass no. - 24.

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