Question

arrange Ca, Mg , P , Cl in increasing order of atomic mass​

Answer 1

Answer:

The atomic radii decreases on moving from left to right in a period, thus order of sizes for Cl,P and Mg is Cl<P<Mg. Down the group size increases. Thus overall order is : Cl<P<Mg<Ca..

Explanation:

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Answer 2

$mg \: < ca < p < cl$

Explanation:

Atomic mass of Magnesium =24.3

Atomic mass of Calcium = 40.1

Atomic mass of Phosphorus =31

Atomic mass of Chlorine =35.5