Exam 2: Atoms and Elements

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The phosphorus atom has less neutrons than the sulfur atom.

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The most abundant element in the Earth's atmosphere is _____.

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The number of protons in lithium is equal to the number of neutrons it possesses.

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Democritus came up with the theory of continuous matter.

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Neutral elements will always have an equal number of protons and neutrons.

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Protons can be represented as p or p+.

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The element with the atomic number equal to 4 is _____.

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The shell closest to the nucleus is the n = _____ shell.

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The most common isotope of hydrogen is ____.

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Which of the following is a compound?

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The number of neutrons distinguishes one type of element from another.

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The subatomic particle that is not found in the nucleus is the ______.

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C-13 has one more electron than C-14.

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The mass of a proton is greater than the mass of an electron.

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Nonmetals _________

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John Dalton found that atoms combine together to form compounds.

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The p orbital ______.

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The columns found in the modern period table are called groups.

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C-13 has less mass than C-12.

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The mass of a neutron is less than the mass of an electron.

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