1. The number of groups and periods in the long form of the periodic table [ ]
a) 7, 18 b) 18, 7 c) 8, 17 d) 17, 8
2. Which of the following is a shortest period [ ]
a) 1st b) 2nd c) 3rd d) 4th
3. VIIIA group elements are also called as [ ]
a) Noble gases b) Inert gases c) Aerogens d) All of these
4. Among the following element present in p – block [ ]
a) Titanium b) Aluminium c) Sodium d) Manganese
5. The general electronic configuration of p – block elements is [ ]
a) 1 2
ns
b) 2 1 6 ns np
c)
1 2 1 10 1
or ns n d
d) 1 1 6 ns np
6. The general electronic configuration of IVA group elements is [ ]
a) 2
ns b) 2 1 ns np c) 2 2 ns np d) 2 3 ns np
7. Lanthanides belongs to [ ]
a) 6
th period and IIIB group b) 5
th period and IIIB group
c) 6th period and IIB group d) None of these
8. Actinides are also called [ ]
a) Rare earth elements b) Radioactive elements
c) Inert gases d) Transition elements
9. The incomplete period in the periodic table is [ ]
a) 4
th b) 5th c) 6th d) 7th
10. Magnitude of screening effect depend on [ ]
a) Inner electrons b) Valency electrons c) Neutrons d) Positron
Answers
Answered by
0
Answer:
1Q.opt a 2Q.opt a 3Q.opt d 4Q. opt c 5Q. opt
Answered by
0
Answer:
no
Explanation:
answer 12 period table
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