An element 'X' in the third period exhibits a sharp increase in its third ionization enthalpy. Element 'X' forms an amphoteric oxide and reacts with both acids and bases. Identify 'X'.
Mg
Si
P
Al
Related Questions
Elements of group 1 and group VI in the periodic table have one thing common. That is with the increasing atomic number, the:
Maximum valency increases
Reactivity increases
Atomic radius increases
Oxidizing power increases
Among the correct order of increasing atomic radii is:
Oxygen is divalent, but sulphur exhibits variable valency of , because:
Sulphur is less electronegative than oxygen
Sulphur is bigger atom than oxygen
Ionisation potential of sulphur is more than oxygen
Of the presence of -orbitals in sulphur
Elements of group 1 and group VI in the periodic table have one thing common. That is with the increasing atomic number, the:
Maximum valency increases
Reactivity increases
Atomic radius increases
Oxidizing power increases
An element has E.C. predict their period, group and block
period = 3, block = p, group = 15
period = 5, block = s, group = 1
period = 3, block = p, group = 10
period = 4, block = d, group = 12
An element with atomic number of 50 belongs to
s – block
p – block
d – block
f – block
An element X belongs to group 14 and period 3 of the periodic table. What is the number of valence electrons in X?
2
4
6
8
Which period of the periodic table contains elements with electrons filling the 4d subshell?
4th period
5th period
6th period
7th period
Element 'X' has the following properties: it exhibits variable oxidation states, forms coloured compounds, and its highest oxidation state corresponds to its group number. 'X' is most likely situated in which block of the periodic table?
s-block
p-block
d-block
f-block
The element with atomic number 36 belongs to which block and period of the periodic table?
s-block, 4th period
p-block, 4th period
d-block, 5th period
f-block, 6th period
