Study Guide for Chapter 4 quiz
(These are not the questions on the quiz! They are simply meant to be used to study.)
The charge and mass number of a proton are:
The mass number of an atom is determined by
The _______________ constitute(s) most of the volume of an atom.
The region labeled "Y" in the diagram has a charge that is:
Isotopes (such as hydrogen-1, hydrogen-2, and hydrogen-3) are atoms of the same element
that differ in:
The atomic number of an element is equal to:
How many neutrons are there in an atom of hydrogen-3?
In order for an atom to be nitrogen, it must have:
Which of the following accurately summarizes the isotope Argon-40?
22 protons, 22 electrons, 18 neutrons
40 protons, 40 electrons, 18 neutrons
39.95 protons, 39.95 electrons, 21.05 neutrons
18 protons, 18 electrons, 22 neutrons
An atom of uranium-238 differs from an atom of uranium-235 in the following way:
Isotope
Mass number Atomic number Protons Neutrons Electrons
lead-_____
127
How many electrons would be found in an atom of oxygen (atomic number 8)?
Find the average atomic mass with the given isotopes: 55Fe 15% and 56Fe 85%
An electron emitted from the nucleus during some kinds of radioactive decay is known as:
For the most common types of radioactive decay, the order of mass from lightest to heaviest is:
An alpha () particle is essentially a ____________________ nucleus.
_____+ 10n → 14256Ba + 9136Kr + 310n
27
13Al
+ 42He → 3015P + ______