Chemistry, 21.01.2022 17:30 MannyBanko1350
Consider a Si atom with a charge of -2 and a mass number of 28.
This type of ion is called alan
How many protons in the nucleus?
How many neutrons in the nucleus?
How many electrons in the electron cloud?
If this Si lost 2 electrons, what would the charge be?
Answers: 2
Chemistry, 21.06.2019 21:00
Consider the nuclear equation below. 239 > x + 4 he 94 2 what is x? 1.235 cm 96 2.243 u 92 3.235 u 92 4.243 cm 96
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Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 22.06.2019 14:30
Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false
Answers: 1
Consider a Si atom with a charge of -2 and a mass number of 28.
This type of ion is called alan
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