Elements of atomic number 93 onwards are called_____elements.

O,S,Se,Te are called_____elements.

The elements with atomic numbers 31 belongs to :

Among the elements from atomic number 1 to 36, the number of elements which have an unpaired electron in their s-subshell is

Fill in the blanks: - Atoms of the same element possessing unequal number of neutrons are called___________.

The element with atomic number 118 has been discovered recently. In the periodic table the element will occupy its position in the family of-

The element with atomic number 118 (Uuo) has been discovered recently. Which of the following is not expected for this element-

First ionisation energy of elements increases with atomic numbers of the elements in a period-why cite an exception.

Write electronic configurations for the elements of atomic numbers 6 and 14 and from this find out of which group in the periodic table each elements belongs.

What will be the name (IUPAC) and symbol if the element with atomic number 119 is discovered? Write its electronic configuration. Also write the formulas of the stable chloride and oxide of this element.