Question

How many elements have been discovered till now?

Answer 1

Hint: Mendeleev first discovered 63 elements and arranged them in order of increasing the atomic mass in the form of a table and it is called Mendeleev's periodic table. Later a lot of new elements are discovered, synthesized in laboratories and arranged in the periodic table according to their properties.

Complete step by step answer:
- In the question it is given how many elements have been discovered till now.
- There are seven periods and 18 groups in the modern periodic table.
- In the modern periodic table there are 114 elements.
- Out of those 114 elements, 98 elements occur naturally and 16 elements are synthesized from the existing elements.
- That means there are 114 elements after counting the naturally occurring and the synthesized elements.

Therefore 114 elements have been discovered till now.

Additional Information:
- The elements are arranged in the periodic table according to their metallic character. As we are moving from left to right in the periodic table the metallic character decreases.
- As we are moving to top to bottom in the periodic table the metallic character increases.
- As we are moving from top to bottom the atomic size of the elements increases and as we are moving from left to right the atomic size of the elements decreases.

Note: The 16 elements are synthesized from the existing 98 elements. The 116 elements are arranged in the periodic table according to their chemical and physical properties. The 116elements are arranged in 4 blocks in the periodic table. The blocks are s, p, d and f-block.