Atoms and Atom Model

Atoms and Atom Model
The maximum number of electrons first shell can hold is
1
2
4
6
Author: rikazzz Comment
Atoms and Atom Model
A chemical formula represents
one atom of an element
multiple atoms of an element
atoms of molecules
atoms of compounds
Author: rikazzz Comment
Atoms and Atom Model
The symbol of ‘neon gas’ is
Ne
Na
N
Mg
Author: rikazzz Comment
Atoms and Atom Model
The smallest particle of carbon dioxide consists of
two atoms
three atoms
four atoms
five atoms
Author: rikazzz Comment
Atoms and Atom Model
The number of neutrons in carbon-13 is
5
6
7
13
Author: rikazzz Comment
Atoms and Atom Model
The valency of ‘bromine’ is
1
2
3
4
Author: rikazzz Comment
Atoms and Atom Model
Protons and neutrons have
charge
mass
energy
sound
Author: rikazzz Comment
Atoms and Atom Model
The ion with a negative charge, is known as
cation
anion
positron
negatron
Author: rikazzz Comment
Atoms and Atom Model
Sodium becomes a cation when
it loses a proton
it gains a proton
it loses an electron
it gains an electron
Author: rikazzz Comment
Atoms and Atom Model
The ionic chemical formula of magnesium is
Mg^-2
Mg⁺²
Mg^–
Mg⁺
Author: rikazzz Comment

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