Question

(d) The number of electron shells around the nucleus of an atom represents its
in periodic table.
(e)
metals and alkaline
metals are placed in the groups 1 and
respectively
on the left hand side of the periodic table.
elements are placed on the right hand side of the periodic table.
(g) The elements occupying left and right wing vertical columns are called
elements.
(h) Noble
are placed in
group in the last
of the periodic table.
(i) The
elements are accommodated in the middle of the periodic table in
series.
6) The first period has
elements and is called
period.
(k) The second and third periods have
elements and are called
periods.
(1) The fourth and fifth periods have
elements and are called
periods.
hich can the following positions in the periodic table.
11​

Answer 1

Answer:

ANSWER:

Choose the correct option and rewrite the statement.

a. The number of electrons in the outermost shell of alkali metals is 1.

b. Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in group2.

c. Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. An element to be present in the same group as X is Na.

d. In p-block of the modern periodic table are the nonmetals found.