Question

1.
Elements X, Y, Z have atomic numbers 6,9 and 12 respectively. Which one:
i] forms anion - negative ion; ii] forms cation - positive ion; iii] has 4 electrons in the outermost orbit.
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Answer 1

Answer:

Elements X, Y, Z have atomic numbers 6,9 and 12 respectively. Which one:

i] forms anion - negative ion; ii] forms cation - positive ion; iii] has 4 electrons in the outermost orbit.

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Explanation:

Answer 2

Answer:

x=beryllium

y=fluorine

z=magnesium

1.fluorine

2.magnesium

3.beryllium