The atom which loses electrons is called ____ atom.
Electronegative
Electropositive
Magnetic
Isotopic
_________possess practically no tendency to from chemical bonds and to enter into chemical combination.
Halogens
Alkalimetals
Alkaline earth metals
Noble gases
What is the second ionization enthalpy(kJ mol-1) of Sr?
1064.
1757
1146.
1450
During the formation of an ionic bond, the electronegative atom gains one or more electrons and changes into a
Anion
Cation
Neutral atom
Noble gas
For which element the second ionization enthalpy(kJ mol-1) is 979?
Radium
Calcium.
Strontium.
Barium.
In sodium chloride, the bond present in between the sodium and chlorine is
Ionic
Covalent
Co-ordinate
Metallic
How many Oxygen atoms are present in Phosphoric acid?
4
3
2
5
When the electronegativity difference between two atoms in large, they can attain octets by the complete transfer of one or more electrons from one atom to the other and can be linked together by an attractive force known as _______ bond.
For which element the second ionization enthalpy(kJ mol-1) is 965?
Strontium
_________ bond between two atoms in the electrostatic force of attraction which holds together the ions of the combining atoms formed by the complete transfer of one or more electrons from electropositive to electronegative atom.