Which of the following is NOT one of the eight most common elements in Earth’s continental crust?


The most abundant element in Earth’s continental crust (by weight) is _____.



3. The central region of an atom is called the _____.


4. If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?


5. Isotopes of the same element differ in the number of _____.


6. When two or more elements bond together in definite proportions, they form a(n) _____.


7. What type of chemical bond forms between positive and negative ions?


8. What is the smallest particle of a covalent compound that shows the properties of that compound?

an ion
an atom
an element
a molecule

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  1. If you will repost and mark your answers with *** I shall be happy to check them. #1 is carbon.

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  2. 1: A
    2: A
    3: C
    4: D
    5: C
    6: D
    7: C
    8: D

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  3. U got all the answers right

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  4. I got an 8/8 100% for the answers above thank you.

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