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Allisa [31]
3 years ago
12

What did the periodic table help scientists discover?

Chemistry
2 answers:
Monica [59]3 years ago
8 0
They discovered that *elements* show increase in atomic numbers across the period.
Virty [35]3 years ago
6 0

Scientists can use the table to analyze reactivity among elements, predict chemical reactions, understand trends in periodic properties among different elements and speculate on the properties of those yet to be discovered. 

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If an atom of Oxygen (8 protons, 8 neutrons, and 8 electrons) gains two electrons, what is the charge of the ion formed?
Alexxx [7]

Answer:

It becomes negative

Explanation:

protons carry a positive charge

neutrons carry a neutral charge

electrons carry a negative charge

if we add 2 more electrons, the charge of the ion becomes negative

thank you.

4 0
3 years ago
Types of equipments that uses in crude oil distillation? ​
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Alteration of the physical form of a drug outside its label is
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Alteration of the physical form of a drug outside its label is compounding
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4 years ago
What type of wave DOES NOT require a medium? Electromagnetic wave or Mechanical wave?
Genrish500 [490]

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7 0
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