Question

find odd man out
1)F,He,I,Br.
2)S,Na,He,H.
3)Li,Ca,K,Na.
4)Ar,Ne,Ag,He.
5)Be,Al Si, N​

Answer 1

Answer:

A force of attraction that holds atoms of a molecule together.

2. The number of hydrogen atoms that can combine with or replace one atom of the element.

3. An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Explanation:

Answer 2

Odd one out in given question are listed below -

1. He - Helium

Fluorine, iodine and bromine are halogens. Helium is noble gas.

2. He - Helium

Sulphur, sodium and hydrogen are reactive elements, due to valence electrons while helium being noble gas, is non reactive.

3. Ca - Calcium

Lithium, potassium and sodium are alkali metals while calcium are alkali earth metals.

4. Ag - Silver

Argon, neon and helium are noble gases, while silver is transition metal.

5. N - Nitrogen

Beryllium, aluminium and silicon are solid at room temperature, while nitrogen exists in gaseous form.