Inorganic Chemistry Answers

the energy required to remove two valence electrons of a metalic atom is called?
a)ionization energy
b)second ionization energy
c)activation energy
d)electron potential

which of these is an sp-hybridized compound?
a)CH4
b)C2H4
c)C2H2
c)C2H6

which of the following is not true as we move down a group of s-block and p-block element in a periodic table?
a)the value of principal quantum number increases
b)atomic radius increases steadly
c)electronegativity increases
d)effective nuclear charge is relatively constant

which of these is not a d-block element?
a)vanadium
b)zinc
c)titanium
d)aluminium

which of these is not a covalent hydride?
a)ammonia
b)ethyne
c)hydrochloric acid gas
d)NaH

which of these is not a s-block element?
a)k
b)ca
c)zn
d)mg

What property was used by Mendeleev to classify elements?

which of the element behave partly as an alkaline metal as well as halogen element?

which of these correctly describes alkali metals?
a) good conductors of heat
b)non-reactive
c)bad condoctors of electricity
d)exhibit photoelectric effect

which scientists attempted to classify element into periods?