is a negatively charged particle present in an atom______________?
A. Proton
B. Neutron
C. Electron
D. None of the above
The covalent bond is formed by_______________?
A. transfer of electrons between atoms
B. sharing of electrons between atoms
C. sharing of variable number of electrons by a variable number of atoms
D. none of the above
The tiny block formed by the arrangement of a small group of atoms is called the____________?
A. unit cell
B. space lattice
C. either A. or (b)
D. none of the above
The converse of hardness is known as______________?
A. malleability
B. toughness
C. softness
D. none of the above
The formula __________ determines the number of electrons that can be accommodated in any level?
A. 2n2
B. 4n2
C. 2n3
D. 4ns
A perfect conductor has_____________?
A. zero conductivity
B. unity conductivity
C. infinite conductivity
D. none of the above