Question

Which of the following are true for an element in its ground state? i. Atomic number = number of protons + number of electrons ii. Mass number= number of protons + number of neutrons iii. Atomic mass = number of protons=number of neutrons iv. Atomic number = number of protons = number of electrons *



i.and ii

ii.and iv

i.and iv

ii.and iii

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Answer 1

Answer:

Option B, ie, ii and iv

Explanation:

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Answer 2

Answer:

2 and 4 is correct.

Explanation:

wkt

atomic no. = no. of protons = no. of electrons

mass number= neutrons + atomic no.

is also same as mass no. = neutrons + no. of protons