Answer:
1). In the periodic table as suggested by Mendeleev, elements were
the periodic table as suggested by Mendeleev, elements werearranged in the order of increasing atomic number.
--> T
2). Sodium (Z=11) is a member of a group called alkaline earth
Sodium (Z=11) is a member of a group called alkaline earthmetals.
--> T
3). Elements to the extreme right of the periodic table are metals.
--> F
They are non-metals .
4). Metalloids have properties of metals and non-metals.
--> T