214k views
3 votes
What is the periodic trend for atomic size from top to bottom in a group ? From left to right in a period ?

User Gulbahar
by
5.5k points

1 Answer

0 votes

Answer: (i)from top to bottom atomic size increases

(II) from left to right the atomic size decreases

Step-by-step explanation:

(i) more shells are being opened as we go down hence size will increase

(II) number of shells is the same , but as we move from left to right charge density is increasing hence the outer electrons feels greater attraction from nucleus hence size decreases

contact 0775776762 thankful for this site

User Arkadas Kilic
by
5.3k points