How elements got their names? Explain all examples.

How are restriction endonuclease enzyme named? Explain with example.

Name the five types of tropisms. How are tropic movements helpful to plants? Explain with an example.

How valence electrons different from the covalency of element ? Explain with examples.

How momentum is conserved, What is the law? Explain with an example.

How are the elements with variable valency named ? Explain with an example.

All transition metals are d-block element but all d-block elements are not transition metal. Explain with an example.

All transitional elements are d-block but the reverse is not true Explain in the example.

Equivalent mass of an element may vary. Explain with example.