Three elements P Q and R have atomic number 4, 12 and 20 respectively
a) state the
number of valence electron in each of the elements.
b) Are these elements going to have a similar or different chemical properties ?
c) Are these elements metals or nonmetals ?
Answers
Answered by
6
Answer:
1 All the elements have same valence electron that is , 2
2 they have different chemical properties
3 metals
Answered by
0
Answer:
1 . Beryllium, Magnesium,calcium.
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