Use the table to determine the color of the flame produced by a sample of potassium bromide (KBr).
UNIT 1 Chapter 4 Quiz - Moving Electrons

Quiz
•
Chemistry
•
10th Grade
•
Medium
Ishrat Khatoon (Khan)
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
yellow
green
violet
violet-green
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is the correct shell model for the element sodium (atomic number 11)?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An atom that has seven valence electrons is in which group?
alkali metals
alkaline earth metals
halogens
noble gases
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To create an ion from a neutral atom, which of these values is changed?
the number of electrons
the number of neutrons
the number of nuclei
the number of protons
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In most ionic compounds, how many electrons does each ion have in its valence shell?
eight electrons
either two electrons or eight electrons
a number equal to its atomic number
a number equal to its mass number
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An ionic compound is formed when
a hydroxide ion bonds to a nitrate ion.
a cation bonds to an anion.
a neutral compound gains an electron.
an atom gains an electron.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a magnesium atom forms an ion with a noble-gas configuration, what will its charge be?
1+
2+
2-
1-
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