Wk. #12 H.W. Unit 5 (Due 11/2 @ 11:59pm)
Authored by Ricardo Mora
Science
10th Grade
NGSS covered
Used 8+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the order of decreasing atomic radius?
sulfur, chlorine, silicon
sulfur, silicon, chlorine
silicon, chlorine, sulfur
chlorine, silicon, sulfur
silicon, sulfur, chlorine
Answer explanation
The atomic radius decreases across a period from left to right.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In general, atomic size tends to increase
from top to bottom and from left to right on the periodic table.
from top to bottom and from right to left on the periodic table.
from bottom to top and from right to left on the periodic table.
from bottom to top and from left to right on the periodic table.
There is no relationship between the size of an atom and its position on the periodic table.
Answer explanation
Atomic size increases from top to bottom due to the addition of electron shells, and from right to left as effective nuclear charge decreases, allowing outer electrons to be held less tightly.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following isoelectronic series is correctly ranked from largest ionic radius to smallest ionic radius?
N3−, O2−, F−, Na+, Mg2+
Mg2+, Na+, F−, O2−, N3−
Na+, Mg2+, N3−, O2−, F−
F−, O2−, N3−, Na+, Mg2+
Na+, Mg2+, O2−, N3−, F−
Answer explanation
In isoelectronic series, ionic radius decreases with increasing positive charge.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As an atom’s radius decreases,
its ionization energy increases.
its ionization energy decreases.
its ionization energy increases or decreases depending on whether you are going up a column or across a row.
its ionization energy does not change.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In general, ionization energy tends to increase in the periodic table
from bottom to top and from left to right.
from top to bottom and from right to left.
from top to bottom and from left to right.
from bottom to top and from right to left.
in no regular trend.
Answer explanation
Ionization energy increases from bottom to top due to decreasing atomic size and from left to right due to increasing nuclear charge, making it harder to remove electrons. Thus, the correct trend is from bottom to top and from left to right.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Consider the atoms A) arsenic B) nitrogen C) bismuth Arrange them in order of decreasing first ionization energy.
C, B, A
B, C, A
A, B, C
B, A, C
C, A, B
Answer explanation
The first ionization energy decreases down a group and increases across a period.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In general, electronegativity decreases ___________________________________________ the periodic table.
from top to bottom and from left to right on the periodic table.
from top to bottom and from right to left on the periodic table.
from bottom to top and from right to left on the periodic table.
from bottom to top and from left to right on the periodic table.
in no regular trend.
Answer explanation
Electronegativity decreases from top to bottom due to increasing atomic size and increases from left to right due to increasing nuclear charge.
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