Which one of the following is an example for a metal?

Which of the following is a short and scientific way of representing one molecule of an element or compound?

The smallest particle of matter that can exist by itself is ______.

________of some elements are derived from Latin or Greek names of the elements.

Elements are the________ form of pure substances.

Assertion: Oxygen is a compound.
Reason: Oxygen cannot be broken down into anything simpler
a. Both assertion and reason are true and reason is the correct explanation of assertion.
b. Both assertion and reason are true, but reason is not the correct explanation of assertion.
c. Assertion is true but reason is false.
d. Assertion is false but reason is true.

Write the chemical formula and name the elements present in the following compounds:
a. Sodium chloride
b. Potassium hydroxide
c. Carbon dioxide
d. Calcium oxide
e. Sulphur dioxide

Classify the following as metals, non-metals and metalloids .
Sodium, Bismuth, Silver, Nitrogen, Silicon, carbon, chlorine, Iron, copper.

Write the chemical formula for the following elements
a. Hydrogen
b. Nitrogen
c. Ozone
d. Sulphur

Give an example for the elements derived from their Latin names

What is atomicity of elements?

Differentiate metals and non metals.

Differentiate between elements and compounds