Protons, Neutrons & Electrons
Isotopes
Atomic
Mass
Mass
Vocabulary
100
True or False? Protons have a negative charge
False
100
Draw K-39 and K-40.
100
What is the mass number of carbon-14?
A.) 6
B.) 14
C.) 8
D.) 20
B.)14
100
The total number of protons and neutrons in the nucleus of an atom is…
Mass number
200
Electrons…
A.) Are positively charged and make up the nucleus
B.) Take up most of the mass in the atom
C.) Are negatively charged and make up the nucleus
D.) Orbit the nucleus and are negatively charged
D.)Orbit the nucleus and are negatively charged
200
In isotope Carbon-14, what does the number 14 represent?
Mass of the atom
200
Atomic mass of Oxygen? (Use periodic table)
Atomic mass 16
200
The number of protons in the nucleus of the atom is called….
Atomic number
300
If the atomic number is 9, the number of protons is?
A.) 8
B.)9
C.)12
D.)1
B.)9
300
What is the atomic mass of this helium isotope?
A.) 2
B.) 4
C.) 5
D.) 6
B.) 4
300
Atomic Mass of Zinc?
(Use periodic table)
Atomic Mass 65
300
The average mass of the atoms of an element is called…
Atomic mass
400
If Uranium’s atomic number is 92 and it has 10 neutrons, how many protons does it have?
A.)92
B.)86
C.)82
D.)102
A.)92
400
What Is the name of an isotope of neon that has 10 protons, 11 neutrons and 1o electrons?
A.) Neon-11
B.) Neon-10
C.) Neon-20
D.) Neon-21
C.) Neon-20
400
Atomic Mass of Bromine?
(Use periodic table)
Atomic Mass 80
400
An atom of on element that has a different number of neutrons than another atom of the same element is...
Isotope
500
An atom of Magnesium has ____ electrons
(Atomic number=12, mass number 24)
12 electrons
500
Name of the element Hydrogen when it has no neutrons?
A.) Doesn’t exist
B.) Protium
C.) Deuterium
B.) Protium
500
90.92% abundance with 19.99 amu, 0.26% abundance with 20.99 amu, and 8.82% abundance with 21.99 amu. Calculate the average atomic mass of this element.
20.16 amu
500
A table showing the repeating patterns of properties of elements is known as..
The periodic table