Home
Class 10
CHEMISTRY
The atomic size of beryllium is smaller ...

The atomic size of beryllium is smaller than the atomic size of lithium. Give reason.

Text Solution

Verified by Experts

In lithium (atomic number = 3) the outermost electron of L-shell is attracted by 3 protons. But in beryllium (atomic number = 4) the outermost electrons of L-shell are attracted by 4 protons. That is, the electrons of L-shell are attracted strongly towards the nucleus in case of beryllium as compared to lithium. Therefore, the atomic size of beryllium is smaller than the atomic size of lithium.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PERIODIC PROPERTIES OF ELEMENTS

    ICSE|Exercise QUESTION (Fill in the blanks from the choices given in the brackets.)|2 Videos

  • PERIODIC PROPERTIES OF ELEMENTS

    ICSE|Exercise IMPORTANT ASSIGNMENTS|18 Videos

  • PERIODIC PROPERTIES OF ELEMENTS

    ICSE|Exercise QUESTIONS FOR PRACTICE ON EXAMINATION PATTERN (SECTION II)|70 Videos

  • PERIODIC PROPERTIES AND VARIATIONS OF PROPERTIES (PHYSICAL AND CHEMICAL)

    ICSE|Exercise Questions from Previous ICSE Board Papers (2018) |5 Videos

  • PERIODIC PROPERTIES AND VARIATIONS OF PROPERTIES

    ICSE|Exercise ASSERTION AND REASON BASED QUESTIONS|5 Videos

Similar Questions

Explore conceptually related problems

The atomic size of lithium is larger than the atomic size of beryllium. Give reason.

In group 1 the atomic radius of sodium is greater than the atomic radius of lithium. Give reason.

Atomic radius of lithium is greater than the atomic radius of fluorine.Give reason

In halogens (group 17) the atomic radius of chlorine is greater than the atomic radius of fluorine. Give reason.

The size of potassium atom is greater than the size of sodium atom. Give reason.

Define: Atomic size

Why is the atomic radius of gallium smaller than that of aluminium?

Fill in the blanks with the appropriate word/s Atomic size of neon is ________ [more/less] than the atomic size of fluorine.

Atomic size of neon is ............. (more/less) than the atomic size of fluorine.

Atomic size of calcium is _______ than that of potassium.

Home
Profile