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1 year ago

Provided is a list of five different substances. How many of these substances are elements?.

Chemistry

1 answer:

Lina20 [59]1 year ago

6 0

Answer:

118

Explanation:

Of these 118 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94.

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2 years ago

The cylinder of aluminum in class was approximately 13mm in circumference and 42mm in length. What would be it's approximate mas

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Answer:

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Explanation:

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2 years ago

The blank and the blank of atoms are the same on both sides of a chemical equation.

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Answer:

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Explanation:

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