ellisya
ellisya ellisya
  • 13-10-2020
  • Chemistry
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I need help with these two questions

I need help with these two questions class=

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studentsmart2020
studentsmart2020 studentsmart2020
  • 13-10-2020

halogens have 7

allali have 2

noble gases have 8

K = 1

P = -3

Ra= 7

Cl = -1

N = 5

O = 6

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