Check in for Living By Chemistry Lessons 18 and 19
Authored by Gordon Burnett
Chemistry
9th - 12th Grade
HS-PS1-2 covered
Used 6+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many valance electrons, that is electrons on the outer most ring, does this atom have?
Answer explanation
Remember the valence electrons are found on the outside ring of the atom. you can only have one valence level and multiple core levels. In this model there were five electrons in total on that outer ring.
Tags
HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many valance electrons, that is electrons on the outer most ring, does this atom have?
Answer explanation
Remember the valence electrons are found on the outside ring of the atom. you can only have one valence level and multiple core levels. In this model there was only one electron in total on that outer ring.
Tags
HS-PS1-2
3.
DROPDOWN QUESTION
3 mins • 1 pt
This atom has (a) valance electrons, that is electrons on the outer most ring.
Answer explanation
Remember the valence electrons are found on the outside ring of the atom. you can only have one valence level and multiple core levels. In this model there were eight electrons in total on that outer ring.
Tags
HS-PS1-2
4.
HOTSPOT QUESTION
3 mins • 1 pt
Select all of the valance electrons in this model.
Answer explanation
Remember the valence electrons are found on the outside ring of the atom. you can only have one valence level and multiple core levels. In this model there were four electrons in total on that outer ring.
Tags
HS-PS1-2
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the net charge on this ion?
Remember that the net charge is found by subtracting the number of electrons fro the number of protons.
Charge = (#protons)-(#electrons)
Answer explanation
In this case you had 3 protons and 2 electrons
3-2 = +1 so the charge was +1
Tags
HS-PS1-2
6.
MATH RESPONSE QUESTION
3 mins • 1 pt
Remember that the net charge is found by subtracting the number of electrons fro the number of protons.
Charge = (#protons)-(#electrons)
This model has 15 protons and 18 electrons in total.
Mathematical Equivalence
ON
Answer explanation
In this case you had 15 protons and 18 electrons .
15-18 = -3 so the charge was -3 charge
Tags
HS-PS1-2
7.
OPEN ENDED QUESTION
30 sec • 1 pt
A student says that the atom seen here will form a cation with +5 charge. In 1 or 2 sentences explain why this student is wrong.
Evaluate responses using AI:
OFF
Tags
HS-PS1-2
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