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ladessa [460]
3 years ago
10

The kinetic energy within molecules of an object _ when heat is added? Increases decreases or remains the same

Chemistry
1 answer:
kotegsom [21]3 years ago
6 0

The kinetic energy of an object increases when heat is added.

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pickupchik [31]

Answer:

The elements become less reactive.

Explanation:

As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction and reactivity increases because of greater electron affinity.

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased. The electron affinity decreases because of shielding effect and thus atom become less reactive.

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Vaselesa [24]
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wisconsin

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oksano4ka [1.4K]
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The space race was between
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the United States and the Soviet Union.

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