Q6) What is the other name for group 18th elements?
a) Noble gases
b) Alkali metals
c) Alkali earth metals
d) Halogens
Correct Answer: Option (a)
Q7) Which group elements are called transition metals?
a) Group number 1 to 2
b) Group number 13 to 18
c) Group number 3 to 12
d) Group number 1 to 8
Correct Answer: Option (c)
Q8) The electronic configuration of an element M is 2, 8, 4. In the modern periodic table, the element M is placed in
a) 4th group
b) 2nd group
c) 14th group
d) 18th group
Correct Answer: Option (c)
Q9) Which of the following elements has 2 shells, and both are completely filled?
a) Helium
b) Neon
c) Calcium
d) Boron
Correct Answer: Option (b)
Q10) Which of the following option describes the achievements of Mendeleev’s Periodic Table?
(a) Prediction of noble gases
(b) It eliminated the blank spaces left in the table(c) Predicting that the elements can be arranged based on their properties(d) An element in a trend has an average atomic mass of the elements above and below itCorrect Answer: Option (a)