Advertisements
Advertisements
प्रश्न
What is the number of elements in the 3rd period, of the modern periodic table?
उत्तर
There are eight elements in the third period.
APPEARS IN
संबंधित प्रश्न
How many periods and groups are there in the long form of periodic table?
What is the usual number of valence electrons in the atoms of the last element in a period?
Name two elements in halogens.
Name the type of elements which have one electron short of octet.
The horizontal rows in a periodic table are called _____.
The d-block elements are called as _______ elements.
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
An element with atomic number ______ will form a basic oxide.
An element has 2 electrons in its N shell.
Is it a metal or a non-metal?
Match the atomic number with the following:
A rare gas.
