an element with atomic number 19will mostly combine chemically with the element whose atomic number is
Answers
Answered by
4
Explanation:
potassium is a alkali metal
and atomic number is 19
Answered by
1
Answer:
28
Explanation:
because 4th shell need to have 18
to complete 18 it needs 9 more so
19+9=28
hope it helps you
Similar questions