Ionization Enthalpy
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(i) The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called _______________. (electron affinity, ionisation potential, electronegativity)
(ii) The compound that does not have a lone pair of electrons is _______________. (water, ammonia, carbon tetra chloride)
(iii) When a metallic oxide is dissolved in water, the solution formed has a high concentration of _______________ ions. (H+. H3O+, OH−)
(iv) Potassium sulphite on reacting with hydrochloric acid releases ______________ gas. (Cl2, SO2, H2S)
(v) The compound formed when ethene reacts with Hydrogen is _______________. (CH4, C2H6, C3H8)
Which of the following statement is not correct about the periodic classification of elements?
The properties of elements are the periodic functions of their atomic numbers
Non-metallic elements are lesser in number than metallic elements
The first ionization energies along a period do not vary in a regular manner with increase in atomic number
For transition elements, the sub-shells are filled with electrons monotonically with increase in atomic number
The factor not affecting ionisation enthalpy is?
Size of atom
Charge in the nucleus
Type of electron involved
Type of bonding in the crystal lattice
Generally the ionization enthalpy in a period increases but there are some exceptions, the one which is not an exception is?
Be and B
N and O
Na and Mg
Mg and Al
- O > F > N > C
- F > O > N > C
- C > N > O > F
- O > N > F C
- P < S < As
- As < S < P
- As < P < S
- S < P < As
Which of the following configurations represent atoms of the elements having the highest second ionization energy?