Badi Final Revision

___________________ is the smallest particle of an element.

• Atom

• Proton

• Nucleus

• Theory

Any matter is made up of ______________

• Atom

• Proton

• Nucleus

• Theory

The model which represents the atom as an indivisible tiny sphere.

• The "Quantum Mechanical Model" of the atom

• The "Plum Pudding Model" of the atom

• Dalton’s atomic model.

• Rutherford’s atomic model.

The model which represents the atom as an indivisible tiny sphere.

• The "Quantum Mechanical Model" of the atom

• The "Plum Pudding Model" of the atom

• Democritus model

• Rutherford’s atomic model.

Electrons and protons ____________

• carry same electric charge

• carry opposite electric charge

• are neutral

• are uncharged

Electrons are ____________

• positive

• negative

• neutral

protons are ____________

• positively charged

• negative charged

• neutral

Neutrons are ____________

• positively charged

• negative charged

• neutral

This model was proposed by ___________, who said that atom has nucleus at center and its positively charged.

• Rutherford

• Bohr

• Democritus

• Einstein

The planetary model for atom was done by which scientist ?

• Bohr

• Rutherford

• Mendeleev

• Shadwick