Physics, 30.09.2021 23:10 eeeeee9848
The main-group elements are the forty-four elements that occupy groups 1A-VIIA of the periodic table. Main-group elements are important because of their high natural abundance both in the Earth's crust and in the human body and are commercially valuable. Review the families containing main group elements and locate families IVA - VIIA. When forming chemical compounds, these four families have commonalities. Explain using as many answer choices that would apply.
A)When forming compounds they become positive ions.
B)As nonmetals, they have high electron affinities.
C)These elements form covalent bonds when combining with metals.
D)They gain or share electrons when they react with other elements. EliminateD)When forming compounds, they obey the octet rule to have eight outer electrons.
Answers: 3
Physics, 22.06.2019 09:00
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
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Physics, 22.06.2019 12:20
A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.
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Physics, 22.06.2019 16:40
The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?
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The main-group elements are the forty-four elements that occupy groups 1A-VIIA of the periodic table...
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