Elements and Atoms Multiple Choice Questions (MCQ) PDF Download

MCQ 1: The smallest particle of an element which can take part in any chemical change is known as a/an

1. nucleus
2. atom
3. proton
4. neutron

MCQ 2: Chemical elements are represented by Greek or Latin

1. alphabets
2. symbols
3. gods
4. illusions

MCQ 3: A hydrogen atom has an approximate diameter of

1. 10-9nm
2. 10-10nm
3. 9-10nm
4. 10-11nm

MCQ 4: Every substance in our world is made up of

1. matter
2. electrons
3. protons
4. chemical elements

MCQ 5: By chemical means, chemical elements cannot be broken down into

1. metals
2. non-metals
3. smaller substances
4. metalloids