What is the symbolic representation of cadmium
CD
Ca
Cd
CA
Give an example for malleable element?
Boron
Hydrogen
Gold
Sulphur
What is called the building blocks of matter?
Particles
Electrons
Neutrons
Elements
What is the valency of a hydrogen atom.
1
2
-2
-1
What is the smallest part of an element?
Electron
Atom
Molecule
Particle
What is the name of group 18 elements?
Representative elements
Main group elements
Noble gases
Metalloids
The positively charged ion?
Proton
Cation
Anion
How many elements are there in nature?
108
117
118
93
What is the valency of Helium
4
3
0
