why there are only 2 elements in the 1 period of the periodic table.?
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Answer:
1St Period
Explanation:
It contains only Hydrogen and Helium
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The answer is in the 88 page number of science NCERT 10TH class ........
still helping you a bit we can explain the number of elements in these periods based on how electrons are filled into various shells. you will study D the details of of this in higher classes recall that the maximum number of electrons that can be accommodated in a shell depends on the formula 2n² where 'n ' is the number of the given shell from the nucleus.
For example, in K shell,
2×1² = 2, hence the first period has two elements
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