The outermost ground state electronic configuration of Group 14 element is
ns2 npx1 npy1 npz0
ns2 npx2 npy1 npz0
ns1 npx1 npy1 npz1
ns1 npx2 npy1 npz0
Which of the following is true for an element R present in Group 13 of the Periodic Table?
it forms RX2
it forms R2O3
it has oxidation state of +4
it is a gas at room temperature
Which of the following statement is correct about Group 13 elements?
they form only compounds
they form only covalent compounds
they form only co-ordinate compounds
they form both ionic and covalent compounds
Which one of the following element has the highest melting point?
B
Al
Ga
Ti
Boron and aluminium are
s-block elements
p-block elements
d-block elements
f-block elements
Which of the following is used in high temperature thermometry?
Na
Hg
The liquefied metal expanding on solidification is
Zn
Cu
Which of the following represents the correct outer electronic configuration of the Group 13 elements?
ns2 np1
ns2 np3
ns2 nd1
ns2 np6
Boron behaves as a
metal
metalloid
non-metal
transition metal
