Answer:
The law of conservation of matter says that matter cannot be created or destroyed. In chemical equations, the number of atoms of each element in the reactants must be the same as the number of atoms of each element in the products
Explanation:
Answer:
The correct answer is 5s
Explanation:
Strontium atomic number = 38
Electronic configuration is
As orbital is valence orbital in strontium, the outer electrons exists in that orbital only.
Answer:
A) Electrons
A) 16-8=8 so it'd be 8
(Relative atomic mass - atomic number = neutrons)
A) 12
Same thing as last one.
31-15=16 ( did you type the wrong options if not then huh?)
Explanation:
Answer:
A
Explanation:
First there is molecular size. Large molecules have more electrons and nuclei that create van der Waals attractive forces, so their compounds usually have higher boiling points than similar compounds made up of smaller molecules. ... Molecular shape is also important, as the second group of compounds illustrate.
Answer:
D
Explanation:
I believe the answer is D because atoms are always seeking to fill up their outer electron shell/valence shell and want to gain a full octet.