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23 Nov 2019
. Fill in the nine gaps in this table.
Symbol Ar, __________, _________
Protons _______, 10, ___________
Neutrons _______, 10, ___________
Electrons ________, __________, 6
Mass number 40, ________,12
. Fill in the nine gaps in this table.
Symbol Ar, __________, _________
Protons _______, 10, ___________
Neutrons _______, 10, ___________
Electrons ________, __________, 6
Mass number 40, ________,12
Sixta KovacekLv2
18 Sep 2019