
8.5ABC Review
Quiz
•
Science
•
8th Grade
•
Medium
Standards-aligned
Kyla Hardaway
Used 9+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Atoms of a certain element have 11 protons and 1 valence electron. Which statement is correct?
the element is sodium and it is not reactive
the element is fluorine and it is highly reactive
the element is fluorine and it is not reactive
the element is sodium and it is highly reactive
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Which characteristic of calcium is most closely related to its chemical reactivity?
20 protons in each calcium atom
calcium's density is 1.54 g.cm3
2 valence electrons in each atom of calcium
one calcium atom has an atomic mass of 40.078 amu
3.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Based on the data, which number shows the correct location of the element with 2 valence electrons and 1 energy levels.
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
The nucleus of the atom contains 8 protons and 9 neutrons. The atom is electrically neutral. How many electrons does this atom have?
1
8
9
15
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Which 2 subatomic particles determine the mass of the atom?
Neutrons and Electrons
Electrons and Protons
Protons and Neutrons
6.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Which element is a metalloid?
Aluminum (Al)
Selenium (Se)
Potassium (K)
Antimony (Sb)
7.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Fluorine is a halogen and a nonmetal that is extremely toxic to humans. When combined with other elements it has many uses, including preventing tooth decay. Which information below identifies Fluorine (F)?
9 protons
9 neutrons
19 electrons
19 protons
Tags
NGSS.MS-PS1-1
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