Question

where is molecular numbers in periodic table​

Answer 1

Explanation: at the above of the row and column

Answer 2

Answer:

Name Atomic Sy... Atomic Nu... Atomic Mass

actinium* Ac 89

aluminum Al 13 26.981538...

americium* Am 95 A molecule is the smallest discrete portion of an element or a compound that retains the properties exhibited by the substance. In nature, oxygen exists as the gas O2 and not as elemental O. Gaseous elements can exist as molecules (eg H2, N2, O2) or as atoms (eg He, Ne, Ar).

Explanation:

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