Save
...
Chemistry
Atomic structure & the periodic table
Atoms
Save
Share
Learn
Content
Leaderboard
Share
Learn
Created by
Chloe Smith
Visit profile
Cards (27)
What are all things made up of?
Lots of tiny particles called
atoms
View source
How many atoms are in a single cell?
More than 100
trillion
View source
What is the basic structure of an atom?
A
nucleus
surrounded by
orbiting
electrons
View source
What particles make up the nucleus of an atom?
Protons
and
neutrons
View source
What is the relative mass of protons and neutrons?
Both have a relative mass of
one
View source
How does the mass of electrons compare to protons and neutrons?
Electrons are
2,000
times smaller
View source
What charge do protons have?
Positive charge
of
one
plus
View source
What charge do neutrons have?
No charge, they are
neutral
View source
What charge do electrons have?
Negative charge of
one
minus
View source
How can you remember the charges of protons, neutrons, and electrons?
Protons are
positive
, neutrons are
neutral
View source
What is the typical radius of an atom?
Around 0.1
nanometers
View source
What is mostly empty space in an atom?
The area between the
nucleus
and
electrons
View source
How does the size of the nucleus compare to the atom?
The nucleus is
10,000
times smaller
View source
What happens when an atom gains or loses electrons?
It becomes an
ion
View source
What is a negative ion?
An atom with more
electrons
than
protons
View source
How is a one minus negative ion formed?
By gaining one
extra
electron
View source
What is a positive ion?
An atom with more
protons
than
electrons
View source
How is a one plus positive ion formed?
By losing one
electron
View source
What does each box in the periodic table represent?
A different type of
atom
called an
element
View source
What does the elemental symbol represent?
It
represents
that
element
View source
What does the atomic number indicate?
How many
protons
an atom has
View source
How do you find the number of neutrons in an atom?
Mass number
minus
atomic number
View source
How many neutrons does oxygen have if its mass number is 16?
8 neutrons
View source
How many neutrons does lithium have if its mass number is 7?
4
neutrons
View source
How many electrons does an atom have based on its atomic number?
It has the same number as
protons
View source
How many electrons does oxygen have?
8
electrons
View source
How many electrons does lithium have?
3
electrons
View source