1) this element has more than 50 but less than 75 protons and it is in group 17.
2)this elemen...
Chemistry, 19.01.2020 22:31 officialariana01
1) this element has more than 50 but less than 75 protons and it is in group 17.
2)this element has more electrons than oxygen but fewer electrons than neon.
3)this element has an atomic number lower than that of aluminun but an atomic mass that is greater than sodium.
4)this group 2 element has fewer protons than bromine but more protons than sulfur.
5)this element has an atomic number that is one greater than platinum.
Answers: 2
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