sworthy807 sworthy807
  • 01-03-2021
  • Chemistry
contestada

what are the elements in the first period

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ashiq25
ashiq25 ashiq25
  • 01-03-2021

Answer:

Explanation:

There are only two elements in the first period: hydrogen and helium. We can explain why there is less elements in the first row in modern theories of atomic structure.

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mrballergang
mrballergang mrballergang
  • 01-03-2021

Answer:

"Hydrogen and Helium". Hydrogen and Helium are the elements of the first period in the modern periodic table.

Explanation:

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