Question

i. The Size of Atoms are measured in________.

ii. Nanometre (nm) =_________metre.

iii. Water molecule = __________ metre =________ Nanometre

iv. Atom of Hydrogen =_________ Nanometre.

3. Name any three Atoms ?​

Answer 1

atomic radius

The atomic radius of a chemical element is ameasure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons.

Answer 2

Answer:

I. The Size of Atoms is measured in ANGSTROMS.

II. Nanometre (nm) =0.000000001 meter

III.  Water molecule =  0.00000000027 metre = 0.27 Nanometre

IV. Atom of Hydrogen = 0.1 Nanometre.

3. Name any three Atoms?

• NEON (NE)
• HYDROGEN (H)
• ARGON (AR)

Explanation:

The Atoms are the smallest particles of ordinary matter, which can be divided without releasing electrically charged particles.

The atoms are various in size, regarding the Angstrom. The ångström is not a part of the SI system of units, but it is considered a part of the metric system.