Question

Odd one out
1. K, As, Ca, Mn​

Answer 1

Answer:

K: pottasium

As: Arsenic

Ca:calcium

Mn:manganese

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Answer 2

Answer:

K is odd

Explanation:

K (Potassium): group 1, period 4

As (Arsenic): group 7, period 5

Ca (Calcium): group 7, period 3

Mn (Manganese): group 7, period 4

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