Question

guys, don't spam
plz answer the question
it's urgent​

Answer 1

Answer:

I don't know the answer of the question

Answer 2

Answer:

Step-by-step explanation:

To solve this question we need to know the isotopic weight of each.

$20{Ne} = 19.992 amu$

$21_{Ne} = 20.994 amu$

$22_{Ne}=21.991 amu$

Atomic weight = ∑(natural abundance × isotopic weight)

                        =(19.992*0.9051)+(20.994*0.0027)+(21.991*0.0922)

                        =20.1796≈20.18 amu