Give an example for malleable element?
Boron
Hydrogen
Gold
Sulphur
What is the symbolic representation of cadmium
CD
Ca
Cd
CA
What is the valency of a hydrogen atom.
1
2
-2
-1
What is the name of the common salt?
Magnesium Chloride
Sodium Chloride
Calcium Chloride
Potassium Chloride
How many stable elements are there in nature?
118
83
28
115
What is called the core of an atom?
Neutron
Electron
Proton
Nucleus
The atom with same atomic number but different mass number?
Element
Mono atomic
Isotope
Cations
The positively charged ion?
Cation
Anion
What is the smallest part of an element?
Atom
Molecule
Particle
