WorksheetsDevelopment of atomic model synergy
Total questions: 17
Worksheet time: 9mins
Which is the Dalton model?
Spheres
Plum puddings
electrons orbiting a single, positive charge
electrons orbiting a nucleus of protons and neutrons.
Which model came first?
Spheres
Plum puddings
electrons orbiting a single, positive charge
electrons orbiting a nucleus of protons and neutrons.
Which model came AFTER the Dalton (spheres) model?
Spheres
Plum puddings
electrons orbiting a single, positive charge
electrons orbiting a nucleus of protons and neutrons.
Which model came AFTER the plum pudding model?
Spheres
Plum puddings
electrons orbiting a single, positive charge
electrons orbiting a nucleus of protons and neutrons.
Which model do scientists currently believe to be correct?
Spheres
Plum puddings
electrons orbiting a single, positive charge
electrons orbiting a nucleus of protons and neutrons.
Why did Dalton suggest that atoms were like spheres?
Because he had discovered electrons
Because he had discovered protons
Because he had discovered neutrons
To explain the properties of solids, liquids and gases
In the plum pudding model we have
negative charges in a positive cloud.
positive charges in a positive cloud.
negative charges in a negative cloud.
positive charges in a negative cloud.
In the plum pudding model we have
negative charges in a positive cloud.
positive charges in a positive cloud.
negative charges in a negative cloud.
positive charges in a negative cloud.
Why was the plum pudding model suggested?
Because we have discovered electrons
Because we have discovered protons
Because we have discovered neutrons
To explain the properties of solids, liquids and gases
Most recently. we have included neutrons in the atomic model. Why?
Because we have discovered electrons
Because we have discovered protons
Because we have discovered neutrons
The gold foil is too thin.
the gold being shiny
The alpha particles hitting the gold nucleus.
forces between the positively charged nucleus and the positively charged alpha particles.
In the gold foil alpha scattering experiment we fired ______ particles at a thin foil of _______
gold, alpha
alpha, gold
gold, gold
alpha, alpha
How many of the alpha particles bounced back
none
a small proportion
about half
most
How many of the alpha particles were deflected?
none
a small proportion
about half
most
How many of the alpha particles went straight through?
none
a small proportion
about half
most
