Question

elements in same period can have same
a) atomic no
b) atomic mass
c) principle no
d) azimuthal no​

Answer 1

Answer:

In the modern periodic table the period indicates the value of the principal quantum number. Thus, for the third period, the value of the In the modern periodic table the period indicates the value of the principal quantum number, n is 3 .

Explanation:

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Answer 2

Answer:

azimuthal number

Explanation:

because they all have same configuration

ie. hydrogen =1s

lithium

$1s {}^{2} 2s {}^{1}$