Question

4)1) which at the following statement is always correct?
a)an atom has equal number at electrons and protons.
b)an atom has equal number at electrons and neutrons
c)an atom has equal number of protons and neutrons.
d)an atom has equal number of electron protons and neutrons.
2) the atomic number of an element is 8 and mass number 16. its nucleus contains
a)8 protons and 8 electrons
b)8 protons and 8 neutrons.
c)18 protons
d)8 neutrons.
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Answer 1

Answer:

1:c - An atom has equal number of proton and neutron

2:c - 8 proton 8 neutron

Answer 2

c is the right answer in both