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WorksheetsAtom Structure and Scientists Review
Total questions: 37
Worksheet time: 25mins
Which model below is Dalton's original idea for the atom?
Which Scientist was the first to propose the idea that atoms are actually mostly empty space?
JJ Thomson
Ernest Rutherford
Niels Bohr
John Dalton
Model of the atom where electrons orbit the nucleus in energy levels
Thomson
Rutherford
Bohr
Dalton
Said elements are composed of atoms and different elements have different types of atoms. Elements can combine together to form new things.
Dalton
Thomson
Rutherford
Bohr
Chocolate chip cookie (plum pudding) model
Dalton
Thomson
Rutherford
Bohr
Select ALL the subatomic particles that are located in the nucleus
proton
neutron
electron
bootron
Where are the electrons located?
nucleus
there are no electrons
orbitals/energy levels/cloud
in the middle of the atom
Charge of protons?
positive
negative
neutral
no charge
Charge of electrons?
positive
negative
neutral
no charge
Charge of neutrons?
positive
negative
neutral
five
Size of protons?
1 amu
1/1800 amu
Size of neutrons?
1 amu
1/1800 amu
How many protons in an atom of this element?
3
7
4
10
How many electrons in an atom of this element?
3
7
4
10
How many neutrons in an atom of this element?
3
7
4
10
Which statement correctly describes the location and charge of the neutrons in an atom?
The neutrons are inside the nucleus and have a positive charge.
The neutrons are outside the nucleus and have a neutral charge.
The neutrons are outside the nucleus and have a negative charge.
The neutrons are inside the nucleus and have a neutral charge.
Mass minus Atomic Number Equals (M-A=?)
Neutrons
Protons
Nucleus
Atom
Atomic number equals ______________ and _______________
Neutrons
Protons
Electrons
Elements
In the early 1900’s many scientists thought that an atom consisted of a positive substance with negative charges scattered throughout the substance. Then Ernest Rutherford completed an experiment that changed the concept of an atom. His discovery led to the understanding that an atom consists mostly of empty space with--
Protons orbiting a dense nucleus made of electrons and neutrons
Electrons orbiting a dense nucleus made of protons and neutrons
Neutrons orbiting and protons orbiting a cloud of electrons
Electrons orbiting and protons orbiting a cloud of neutrons
An atom has 11 protons, 12 neutrons, and 11 electrons. What is the charge of the atom’s nucleus?
+11
+12
-12
-11
The------ particle determines the identity of what element you have'
electron
proton
neutron
valence shell
WhIch sub atomic particle vary between isotopes of an element?
protons, electrons, and atomic mass
protons, electrons, and atomic number
neutrons and electrons
neutrons only
99.9% of the atom's mass is found where?
nucleus
protons
electron cloud
neutrons
Electrons are subatomic particles that exist
inside the nucleus.
in simultaneous dimensions.
in parallel universes.
outside the nucleus.
Which statement correctly describes the location and charge of the neutrons in an atom?
The neutrons are inside the nucleus and have a positive charge.
The neutrons are outside the nucleus and have a neutral charge.
The neutrons are outside the nucleus and have a negative charge.
The neutrons are inside the nucleus and have a neutral charge.
