Invar, an alloy of $ Fe$ and $ Ni $ is used in watches and meter scale, its characteristic property is
Small coefficient of expansion
Resistance to corrosion
Hardness and elasticity
Magnetic nature
Stainless steel is non-corrosive. This character is more prominent in
The $CORRECT$ ionisation energy order is
An oxide of copper which is red in colour has the formula
Magnetic moment is expressed in
Explain the variations in atomic radii of transition elements along the period.