Upgrade to remove ads
Only $2.99/month

Module 13 Review

Terms in this set (25)

What type of charge is a proton?
(+) (positive)
Atoms with the same number of protons but different numbers of neutrons are called ____________.
isotopes
An atom with a nucleus that is not stable is called a __________________.
radioactive isotope
A collection of atoms that all have the same number of protons is called an ___________________.
element
The center of an atom, containing protons and neutrons is called the _____________.
nucleus
The sum of the numbers of the neutrons and protons in the nucleus is the __________________.
mass number
The number of protons in an atom is the _________________.
atomic number
If a piece of paper is placed between a radioactive isotope and a person the person will be protected from what type of particles?
alpha particles
Put the following is order of size from smallest to largest: neutron, electron, proton
electron, proton, neutron
What type of charge is an electron?
(-) (negative)
The second orbit of an atom holds how many electrons?
8
What type of charge is a neutron?
No charge - neutral
The nucleus consists of _____________ and ___________.
protons, neutrons
In a typical element there are the same number of __________ and __________.
protons, electrons
The overall electoral charge of a typical atom is ______________. (positive, negative, neutral)
neutral
The strongest force is the _____________.
strong force
Which of the following are isotopes? 144Ce, 144Pr, 144Sm, 145Pr
144Pr, 145Pr
When 238U undergoes alpha decay the daughter product is ______________.
234Th
When isotope 32P undergoes beta decay the daughter product is ______________.
32S
What is the daughter product in the gamma decay of 237Np?
237Np
The number of protons, electrons and neutrons in the 56Fe atom is what?
26 protons & electrons and 30 neutrons
How many Bohr orbit rings are in a magnesium atom? (Mg)
3 rings
How many electrons are in the last Bohr orbit ring of a magnesium atom? (Mg)
2 electrons
A schematic description of a system that accounts for its known properties is called a _____________.
model
The time it takes for half of the original sample of a radioactive isotope to decay is called the ____________.
Half-life
THIS SET IS OFTEN IN FOLDERS WITH...