Which of the following is NOT
an example of an atom?
A. A water molecule
B. The smalles...
Chemistry, 17.11.2020 19:40 jonathanLV6231
Which of the following is NOT
an example of an atom?
A. A water molecule
B. The smallest part of oxygen
C. The smallest part of helium
Answers: 1
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Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.
Answers: 2
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The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
Answers: 3
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Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity
Answers: 1
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The half-life of a certain element is 100 days. how many half-lives will it be before only one eighth of this elementremains?
Answers: 1
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