Chemistry

Chemistry, 19.07.2019 10:40, Bashirar19

Silicon (si) is an element that computers run. how many valence electrons does silicon have? write your answer as a number, not the word form of the number.

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Chemistry, 28.10.2019 16:31, lpierce35

Some isotopes of elements are unstable and decay into other, more stable isotopes over time. for example, it takes 153 years for half of a sample of silicon (si) atoms with 14 protons, 14 electrons, and 18 neutrons to decay. what is the name of this specific silicon isotope. a. silicon-14 b. silicon-32 c. silicon-46 d. silicon-153

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