Which two particles each have a mass approximately equal to one atomic mass unit?

Atomic Structure and Isotopes Worksheet

Quiz
•
Science
•
10th Grade
•
Hard

Lauren Reitano
FREE Resource
78 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
positron and electron
positron and neutron
proton and electron
proton and neutron
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which description of the atom is based on the results of the gold foil experiment in the early 1900s?
Atoms are small, dense, indivisible spheres
Atoms are composed of protons, electrons, and neutrons
Atoms have small, dense, positively charged nuclei.
Atoms have electrons with wavelike properties.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On the Periodic Table, the number of protons in an atom of an element is indicated by its
atomic mass
atomic number
selected oxidation states
number of valence electrons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Every chlorine atom has
7 electrons
17 neutrons
a mass number of 35
an atomic number of 17
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The table below gives the atomic mass and the abundance of the two naturally occurring isotopes of copper. Which numerical setup can be used to calculate the atomic mass of the element copper?
(62.93 u)(30.85) + (64.93 u)(69.15)
(62.93 u)(69.15) + (64.93 u)(30.85)
(62.93 u)(0.3085) + (64.93 u)(0.6915)
(62.93 u)(0.6915) + (64.93 u)(0.3085)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A potassium atom has a mass number of 37. What is the number of neutrons in this atom?
15
18
22
37
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which phrase describes the different isotopes of an element?
same number of electrons and a different number of protons
same number of protons and a different number of electrons
same number of protons and a different number of neutrons
same number of neutrons and a different number of protons
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