Chemical properties are dependent on
Density
Outer electronic configuration
Viscosity
Physical properties
Elements from group 3 to group 12 are collectively known as
Noble gases
Alkali metals
Halogens
Transition elements
The elements from group number 13 to group number 16 are collectively known as
Post transition elements
Inner transition elements
_____________ are good oxidising agents.
Alkaline earth metals
______are known as zeroth group elements
_______________ arranged elements in increasing order of atomic weights in the form of a table called the periodic table.
Newland
Mendeleev
Dobereiner
Moseley
__________________ lie at the centre of the periodic table between metals on the left and non-metals on the right.
According to modern periodic law, the physical and chemical properties of elements are periodic functions of their
Atomic number
Atomic weight
Valency
_______are placed in the extreme right of the periodic table.
________is the ability of an element to exist in more than one form.
Allotropy
Isotopes
Metals
Non-metals