Which of the following statements is true?
a. A piece of magnesium is made only of magne...
Which of the following statements is true?
a. A piece of magnesium is made only of magnesium atoms.
b. All 118 elements occur naturally on Earth.
c. Protons and neutrons orbit the nucleus of an atom.(i picked this one and it was wrong)
d. Electrons are found in the nucleus.
Answers: 3
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Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
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