shushhamoud123
shushhamoud123
19-09-2022
Chemistry
contestada
ASAPP!!! CHEM HW HERE
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roobaroo2
roobaroo2
19-09-2022
Element x is Argon
Argon’s period is 3
It is in group 18
It’s atomic number is also 18
For the explanation:
A period is the horizontal row across the periodic table
The atomic number is the number of protons in the nucleus
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