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Trava [24]
2 years ago
15

Elements found on the left side of the Periodic Table are known as

Chemistry
1 answer:
Degger [83]2 years ago
5 0

Answer:

Metals

Explanation:

Akaline earth metals to be exact

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The nuclear equation {226/88 Ra → 222/26 Rn + 4/2 He} is balanced. As we know that an alpha particle is identical to a helium atom. This implies that if an alpha particle is eliminated from an atom's nucleus, an atomic number of 2 and a mass number of 4 is lost.

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What is the number of electrons that can be held in the first orbit closest to the nucleus
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