trvstwxrthy trvstwxrthy

30-06-2021
Chemistry

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Element X has a nucleon (mass) number of 19 and a proton (atomic) number of 9. Which group does X belong in? Choose one of the following and explain the answer.

a) I b) III c) VII d) 0

Respuesta :

skelet0astt skelet0astt

01-07-2021

Answer:

C

Explanation:

Flourine has

9 protons

9 electrons

10 neutrons

this makes the atomic number 9 and the atomic weight 19.

hope it helps

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yazminehoward12 yazminehoward12

01-07-2021

C the is no other explanation but that trust me

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