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- Multiple ChoicePlease save your changes before editing any questions.
Symbol for Sodium
S
Sa
Na
N
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What is the atomic number of Nitrogen
3
5
7
9
- Multiple ChoicePlease save your changes before editing any questions.
Mass number of Carbon
3
6
10
12
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Atomic number of calcium
5
10
15
20
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Identify the symbol of the element shown in the figure.
Fe
Cu
Al
Ag
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Element present in common salt
Na
S
Fe
H
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Identify the non metal present in Carbondioxide
S
Ca
C
Mg
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Element with atomic number 10
He
Na
Ne
S
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Metal needed for strong bones
Mg
Fe
Ca
P
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A soft metal
K
Ca
Mg
S