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iren2701 [21]
3 years ago
10

An ________ is the smallest unit of matter that cannot be broken down chemically into simpler substances.

Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0
The answer is atom because it cannot be broken down into small substances
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Write the electron configurations of cu2+ and ag+. is each electron configuration consistent with the color you observed for eac
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(1) Copper:
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Cu2+ means that it lost 2 electrons, therefore, the total number of electrons is 29-2 = 27 electrons.
The electronic configuration is:
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(2) Silver:
Silver has atomic number : 47
Ag  + means that it lost one electron, therefore, the total number of electrons  is 47-1 = 46 electrons
The electronic configuration is:
<span>1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10</span>

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