Advertisements
Advertisements
Question
How many groups and periods does the modern periodic table have?
Advertisements
Solution
The modern periodic table consists of seven horizontal rows and eighteen vertical columns.
APPEARS IN
RELATED QUESTIONS
What is periodicity in properties of elements with reference to the Modern Periodic Table?
On which side of the periodic table will you find metals?
Is it possible to have an element having atomic number 1.5 placed between hydrogen and helium?
The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:
(a) P
(b) Q
(c) R
(d) S
State how the valency of elements varies in a period of the periodic table?
(b) What is the number of elements is 3rd period, the modern periodic table?
Answer the following question.
How it can be proved that the basic structure of the Modern Periodic Table is based on the electronic configuration of atoms of different elements?
Give the symbol and valency of the following element and radical.
Magnesium
State the number of elements in Period 3 of the Periodic Table.
What are groups and periods in the modern periodic table?
