stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
The Atom Flashcards | StudBud
Explore
/
The Atom
The Atom
15 terms
·
StudBud Administration
·
762 plays
Grade 7 Atoms
Flashcards
15 cards
F
Practice quiz
P
Host live
L
Questions
15
Answers
1
The mass number of an element is the total number of
protons + neutrons
electrons + neutrons
electrons + protons
electrons
2
Where are the electrons located in this atom?
the gray area around the center
This atom has no electrons
the center
3
Particles that have no electric charge in an atom are called
electrons
protons
nucleus
neutrons
4
Which order shows the parts of an atom from least to most mass?
electron, neutron, proton
proton, neutron, electron
electron, proton, neutron
neutron, electron, proton
5
In today's atomic theory,
the electrons move around the nucleus clockwise
the atom looks like cookie dough with electrons mixed in
the electrons move within an electron cloud
the electrons orbit the nucleus like planets
6
Negatively charged particles in an atom are called
electrons
protons
nucleus
neutrons
7
What is the atomic number of the carbon atom?
6
10
12
18
8
The atomic number of an element is the same as its number of
electrons
protons
neutrons
ions
9
Which is NOT a reason that models of the atom have changed?
There have been many experiments done over time.
Today we have more sophisticated equipment.
We are smarter today than they used to be.
10
An atom is the smallest particle of an element that has its chemical properties.
false
true
11
An atom can be seen under an ordinary microscope.
true
false
12
Postiviely charged particles in an atom are called
electrons
protons
nucleus
neutrons
13
The model of an atom has remained the same since 1808.
true
false
14
An atom is the basic unit of matter.
false
true
15
Atoms combine in various ways to make up substances.
fasle
true
