Ions & Isotopes
Authored by Bethany Herman
Chemistry
10th - 11th Grade
NGSS covered
Used 1K+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How many neutrons are in an atom of carbon-14?
6
8
10
14
Tags
NGSS.HS-PS1-8
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How many protons does this isotope of titanium have?
22
26
48
70
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?
2
34
36
40
Tags
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Write the hyphen notation for the isotope that has 39 protons and 50 neutrons.
Yttrium-11
Tin-39
Tin-89
Yttrium-89
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If X is the symbol for an element, which of the following two symbols represent isotopes of the same element? I. 7735X II. 7733X III. 8137X IV. 8135 X
Tags
NGSS.HS-PS1-8
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Chromium has four naturally occurring isotopes (chromium-50, chromium-52, chromium-53, and chromium-54). What is the average atomic mass of Chromium?
4
51.996
52.25
Not enough information was given.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An element has three isotopes. Given the abundances and relative masses, calculate the average atomic mass and determine (from the periodic table) which element it is.
Abundances | Relative masses
0.005% | 234.04 amu
0.720% | 235.04 amu
99.275% | 238.05 amu
Uranium (#92, Atomic Mass: 238.03 amu)
Fluorine (#9, Atomic Mass: 19.00 amu)
Mercury (#89, Atomic Mass: 200.59 amu)
Polonium (#84 209 amu)
Tags
NGSS.HS-PS1-8
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