Test understanding. select the Correct Answer
Combination of atom of various elements or same element
- molecule
- electron
- proton
- neutron
According to dalton atom is
- liquid
- soft
- divisible
- indivisible
Mass of an atom is concentrated in the
- proton
- electron
- neutron
- nucleus
Chadwick discovered
- proton
- neutron
- molecule
- atom
Rutherford discovered
- proton
- neutron
- electron
- atom
JJ Thomson model was also called
- gold foil
- plum pudding
- alpha particle
- none
Neutron was discovered by
- JJ thomson
- Rutherford
- Chadwick
- none
Atomic number is represented by letter
- A
- N
- P
- Z
Combining property of atom is
- atomic number
- mass number
- valency
- molecule
In isotopes atoms of same element can have different number of
- proton
- neutron
- electron
- molecule