Atomic Structure
Periodic Table
Chemical Reaction
Nuclear Decay
Nuclear Reaction
100
Neutrons have a what kind of charge?
Neutral
100
Which of the following are the most reactive of all metals?
Alkali metals
100
Which statement provides the best description of a covalent bond?
A covalent bond is the attraction between atoms when they share electrons
100
Which force holds protons and neutrons together in the atom nucleus?
Strong nuclear force
100
Which best represents nuclear fission?
G
200
The number of which type of particle determines the identity of an element?
Protons
200
What describes the Group 2 elements beryllium, magnesium, and calcium?
Alkaline metals
200
How many particles are in one mole of a substance?
6.02 x 10^23
200
What type of nuclear decay is represented in this illustration?
Alpha decay
200
A high temperature is required for which to occur?
Nuclear fusion
300
Protons have a what kind of charge?
Positive
300
To which major group do these elements belong?
Transition metals
300
PbI with exponent 2
300
Which of these is an alpha particle?
D
300
During nuclear fission, a nucleus _________.
Divides
400
Electrons have ______ charge.
Negative
400
The illustration shows the upper right section of the periodic table. How are the elements in the lightly shaded region to the right classified?
Non-metals
400
Which of the following is not an ionic compound?
HCI
400
When a neutron turns into a proton in a nucleus, what sort of particle is emitted?
Beta
400
Only nuclei with _________ atomic numbers can undergo fission.
Large
500
______ are atoms of the same element that have different numbers of neutrons.
Isotopes
500
Which group of elements on the periodic table is the least reactive?
Group 18
500
The substances that undergo change in a chemical reaction are called
Reactants
500
What happens in a nucleus during gamma decay?
The number of protons remains the same.
500
When two smaller nuclei come together, it is called ________.
Nuclear fusion