SCIN 131 Week 2 Quiz / SCIN131 Week 2 Quiz: American Military University

SCIN 131 Week 2 Quiz
Released: Jun 25, 2021 11:55 PM

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`Which of the following statements is true as stated by the chemist Joseph proust?

Question options:

All atoms of a given element have a constant composition and are different than atoms of any other element.

All samples of a given compound have the same proportions of their constituent elements.


The nucleus is a dense region of positive charge that always contains protons and neutrons.

Matter cannot be either created or destroyed in a chemical reaction.

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this is the law of constant composition

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What is matter made up of at the most fundamental level?

Question options:

neutrons

isotopes

electrons

atoms

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All matter is composed of elements, and all elements are made of atoms; but matter occupies spaces and has mass.
Revie

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How would you correctly write the atomic symbol of nitrogen?
Question options:

, Ni

Ng

Nt

N

none of the above

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Topic discussed in Chapter 3.6 See the periodic table.

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`The elements that touch the zig-zag line on the periodic table are known as

Question options:

metals

nonmetals

metalloids

transition metals

none of the above

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Topic discussed in Chapter 3.6 See the periodic table.

points
An atom of bromine-79 contains

Question options:

34 protons and 35 electrons, only

44 protons, 44 electrons, and 35 neutrons