Atoms and Atom Model

Atoms and Atom Model
The symbol of “Hydrogen” is
H
He
Na
Hy
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Atoms and Atom Model
Each ‘atom’ contains
shells
nucleus
neutrons
particles
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Atoms and Atom Model
The symbol of “Beryllium” is
Na
Li
Ba
Be
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Atoms and Atom Model
Atoms of an element with same atomic number but having different mass number are known as
allotropes
isotopes
hydrocarbons
amotopes
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Atoms and Atom Model
The ionic chemical formula of potassium is
K^–
K⁺
K_–
K₊
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Atoms and Atom Model
The number of elements found in the nature is approximately
90
80
100
200
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Atoms and Atom Model
All bonding involve
protons
neutrons
electrons
positrons
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Atoms and Atom Model
In a drawing of atom, shells are indicated by
rectangles
squares
circles
triangles
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Atoms and Atom Model
The ‘chlorine’ ion has
positive charge
negative charge
no charge
both a and b
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Atoms and Atom Model
The larger the number of subatomic particles, the more the likeliness of being
stable
radioactive
complete
decayed
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