N -3
Ba +2
Sr +2
F -1
I -1
Ca +2
Mg +2
S -2
S -2
Al +3
//
Ba3N2
SrF2
CaI2
MgS
Al2S3
//
I don't really understand 2.
Copper atom has 29 protons and 34 neutrons in its nucleus
1. First taking in light, then electron transport
2. A main fuel for your brain. Without it, your brain wouldn't function well. Yes, you need it.
The type of substance that is most likely to contain a covalent bond is ONE THAT IS COMPOSED OF ONLY NON METALS.
Covalent bond is a type of chemical bond in which electron pairs are shared among the participating elements in order to achieve the octet form. Covalent bond is usually found among non metals.
Answer:
The last choice.
Explanation:
It does not conduct electricity in any form.
They have no free electrons and do not ionise.
