Question

Give reasons: (in short)
1. Solids of dedinite shape and volume

2. Metallic character increases down the group but decreases towards right.

3. Isotopes have different physical properties but similar chemical properties.

4. Chlorine has fractional atomic mass.

5.Why noble gases are monoatomic?

6. All the values of kelvin scale are positive.



Please answer it in short and quickly it's very urgent. I will mark you Brainliest.​

Answer 1

2.) in group when we moving from left to right the size will decrease becoze in atoms the nucleus are so far ...

3.) isotopes having same molecular formula but different structure becoze in isotopes we can make 2 or 3 structure...

Answer 2

The molecules in a solid are in fixed positions and are close

together. Although the molecules can still vibrate, they cannot move

from one part of the solid to another part. As a result, a solid does not

easily change its shape or its volume. If you force the molecules apart,

you can change the shape and the volume of a solid by breaking it

into pieces. However, each of those pieces will still be a solid and have

its own particular shape and volume.