On moving from left to right in a period in the periodic table, the size of the atom:
A. increases
B. decreases
C. does not change appreciably
D. first decreases and then increases
Answer:B
On moving from left to right in a period in the periodic table, the size of the atom:
A. increases B. decreases C. does not change appreciably D. first decreases and then increases
Explanation: As we move from left to right in the period of periodic table, the number of shell remains same but atomic number increases. So, the increase in nuclear charge which tends to pull electrons closer to the nuclers and reduces the size of the atoms.