Question

The third shell (Mshell) of an element X contains 7 electrons. Its mass number is 35.
b) What is the atome number of the element?

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Answer 1

Answer:

Chlorine

b.) Protons is used as the atomic number of elements.

Explanation:

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Answer 2

Answer: x = 5

Explanation:

7x = 37

x = 5