MolSynapsequestion bank

MolSynapse / Question bank / Periodic Table and Periodicity / Modern periodic table and classification of elements

JEE Main levelSingle correct optionDifficulty 2 of 3pt048

An element has the configuration $[Kr] 4 d^{10} 5 s^{2} 5 p^{3}$ . Its group and period are

Agroup 13, period 5
Bgroup 15, period 4
Cgroup 5, period 5
Dgroup 15, period 5

Answer: D

The highest shell is 5, so period 5. The element is p-block, so group

= 10 + 2 + 3 = 15

(this is antimony).

Practice Periodic Table and Periodicity More on Modern periodic table and classification of elements

Previous questionNext question

More questions on Modern periodic table and classification of elements

Li and Mg show a diagonal relationship. Select the correct statement(s). JEE Main level
Select the correct statement(s) about periods. JEE Advanced level
An element has atomic number 34. Its group and period in the long form of the periodic table are JEE Main level
An element of the third period has successive ionisation enthalpies (in kJ mol^-1) 577, 1816, 2744, 11577 and 14842. The atomic number of th... JEE Advanced level
Select the element(s) usually classified as metalloids. JEE Main level
Select the correct statement(s) about metals, non-metals and metalloids. JEE Advanced level