i. In the modern periodic table, the elements are the periodic functions of …….. ii. The d-block elements are called ……..

Question

Full in the blank:

i. In the modern periodic table, the elements are the periodic functions of ……..

ii. The d-block elements are called ……..

iii. The group …….. contains the members of the halogen family.

iv. …….. is the distance between the nucleus of the atom and its outermost shell.

v. The number of electrons in an atom is equal to the same of ……..

vi. Henry Moseley shows that the atomic number (Z) of an element corresponds to the positive charge on the nucleus or the number of ………

vii. The ……. block contains the group 1 and 2.

viii. The elements are arranged in such a way that …… are on left side of zig-zag line and …….. on the right side.

Answer 1

i. In the modern periodic table, the elements are the periodic functions of atomic numbers.

ii. The d-block elements are called transition elements.

iii. The group 17 halogen the members of the halogen family.

iv. Atomic radius is the distance between the nucleus of the atom and its outermost shell.

v. The number of electrons in an atom is equal to the same of atomic number.

vi. Henry Moseley showed that the atomic number (Z) of an element corresponds to the positive charge on the nucleus or the number of protons.

vii. The s-block contains the group 1 and 2.

viii. The elements are arranged in such a way that metals are on left side or zig-zag line and nonmetals on the right side.