Q.1
_____ group contains the member ofhalogen family.
  • 17th
  • 15th
  • 18th
  • 16th
Q.2
The number of periods and groups in theperiodic table are______.
  • 6,16
  • 7,17
  • 8,18
  • 7,18
Q.3
4.The arrangement of elements in the Modem Periodic Table is based on their
  • (a) increasing atomic mass in the period
  • (b) increasing atomic number in the horizontal rows
  • (c) increasing atomic number in the vertical columns
  • (d) increasing atomic mass in the group
Q.4
2.At the time of Mendeleev, the number of elements known was
  • 63
  • 65
  • 62
  • 64
Q.5
3.An atom of an element has the electronic confi-guration 2,8,To which group does it belong?
  • 4th group
  • 6th group
  • 3rd group
  • 2nd group
Q.6
5.Pick out the chemically most reactive elements from the given triads.
  • (a) Li and F
  • (b) Li and Br
  • (c) K and F
  • (d) K and Br
Q.7
A metal ‘M’ is in the first group of the Periodic Table. What will be the formula of its oxide?
  • (a) MO
  • (b) M2O
  • (C) M2O3
  • (d) MO2
Q.8
6.What is the atomic number of element of period 3 and groupof the Periodic Table?
  • (a) 10
  • (b) 4
  • (c) 17
  • (d) 21
Q.9
Name the neutral atom in the Periodic Table which has the same number of electrons as K+ and Cl-.
  • (a) Helium
  • (b) Argon
  • (c) Neon
  • (d) Krypton
Q.10
Which of the following set of elements is written in order of their increasing metallic character?
  • (a) Na Li K
  • (b) C Q N
  • (c) Mg Al Si
  • (d) Be Mg Ca
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