Properties of Matter - Explore the scientific theory of atoms (also known as atomic theory) by recognizing that atoms are the smallest unit of an element and are composed of sub-atomic particles (electrons surrounding a nucleus containing protons and neutrons).
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Q 1/11
Score 0
Webb is testing samples of different elements. One sample is a dull, yellow solid that breaks into powdery pieces when he hits it with a hammer. How should Webb classify the yellow solid?
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as a noble gas
as a nonmetal
as a metalloid
as a metal
Q 2/11
Score 0
The periodic table has rows and columns that organize the elements by similarities. What is the name for a row in the periodic table?
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period
family
section
group
11 questions
Q.
Webb is testing samples of different elements. One sample is a dull, yellow solid that breaks into powdery pieces when he hits it with a hammer. How should Webb classify the yellow solid?
1
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Q.
The periodic table has rows and columns that organize the elements by similarities. What is the name for a row in the periodic table?
2
30 sec
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Q.
The prefix semi- means “partly.” Based on your knowledge of the properties of elements, which kind of element is most likely used to make semiconductors?
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30 sec
SC.8.P.8.6
Q.
Why do the elements in group 16 share similar chemical properties?
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30 sec
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Q.
Atoms of different elements can join together in different arrangements to produce a variety of substances that are found on Earth. There are more than 100 known elements. Which of the following best describes these elements?
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30 sec
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Q.
What is true about the position of any metal on the periodic table?
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30 sec
SC.8.P.8.6
Q.
Which two elements are most likely to have similar properties?
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30 sec
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Q.
A neutral atom has 6 total electrons. Which statement is true?
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30 sec
SC.8.P.8.6
Q.
Based on vanadium's (V) location on the periodic table, which of the following would be describe its physical properties?
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30 sec
SC.8.P.8.6
Q.
An atom's atomic number is 50 and it has a mass number of 120. How many neutrons does this atom have?
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30 sec
SC.8.P.8.7
Q.
Marcus wants to use two objects to compare the size of a proton and an electron. If he uses a basketball for a proton, which object would best represent an electron?
