WorksheetsGrade-7_Atomic models
Total questions: 16
Worksheet time: 8mins
Is all matter made up of indivisible particles?
Yes
No
Atoms of similar elements are _____ in shape and mass, but ____ from atoms of other atoms. Fill in the two blanks.
similar, similar
similar, different
different, different
different, similar
Atoms can be created or destroyed.
True
False
Name the smallest unit of matter.
electron
proton
nucleus
atom
Which model of atom gave the law of chemical combination?
Rutherford Model
Thompson Model
Dalton's model
Bohr Model
How many sub-atomic particles are present in an atom?
2
3
4
5
Plum Pudding model was given by
Bohr
Thompson
Rutherford
Dalton
According to the plum-pudding model,
protons are embedded in a sea of negative charges
electrons are embedded in a sea of negative charges
protons are embedded in a sea of positive charges
electrons are embedded in a sea of positive charges
He is known as the father of nuclear physics
Dalton
Thompson
Rutherford
Bohr
Rutherford model was also known as
alpha particle experiment
alpha particle scattering experiment
gold foil experiment
gold experiment
Which of the observations is true according to Rutherford's model?
Most of the space inside an atom is full
Most of the space inside the atom is empty
Which of the following is true, according to Rutherford's model-
There is a negatively charged nucleus present inside the atom
There is a positively charged nucleus present outside the atom
There is a positively charged nucleus present inside the atom
There is a negatively charged nucleus present outside the atom
Which of the following is true, according to Rutherford's model-
nucleus revolve around the electrons
electrons revolve around the nucleus
electrons do not revolve around the nucleus
nucleus revolve outside the atom
Which of the following is true-according to Rutherford Model?
Very few alpha particles were deflected by 180 degrees
A lot of alpha particles were deflected by 180 degrees
Very few alpha particles were absorbed by the nucleus
Very few alpha particles passed straight through the atom
Which of the following is true-according to Rutherford Model?
Electrons are present inside the nucleus
Nucleus is negatively charged
Nucleus is positively charged
Electrons are positively charged
Will an electron lose energy on continuous motion in circular path?
Yes
No
May be
Cannot say
