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WorksheetsChemistry: Atomic structure
Total questions: 15
Worksheet time: 5mins
Protons and neutrons are collectively known as _______ ?
Electrons
Nucleons
Atoms
Neutrons
What is the Valency of Calcium?
5
4
1
2
________ is the number of atoms present in one molecule of an element.
Atom
Valency
Atomic number
Atomicity
What is the electronic configuration of Chlorine?
2,8,1
2,8,7
2,8,5
2,4
Carbon is ______ ?
Monovalent
Tetravalent
Bivalent
What is the symbol of Fluorine?
Fl
FL
F
Fo
What is the valence shell for Potassium
L
M
K
N
Neutrons are ______ charged.
Positively
Negatively
Neutrally
+1 is the charge of which ion
Mg
Cl
Na
P
Which of the following will have trivalent valency?
N
B
Al
P
All of the above
Atomicity of NH4OH is ______ ?
7
9
10
4
Frame formulae for Nitric acid:
HNO3
H2NO3
H2(NO)2
How many atoms are present in one molecule?
7
9
10
4
Which of the following polyatomic Ion is a cation?
Sulfate ion
Hydroxide ion
Aluminum ion
Ammonium ion
Atomicity of phosphorus molecule is 8.
True
False
