Which of these elements has an electron configuration of [Kr]5s??
O barium
• calcium
•...
Chemistry, 24.02.2021 07:10 ilpark0125
Which of these elements has an electron configuration of [Kr]5s??
O barium
• calcium
• rubidium
O strontium
Answers: 3
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Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.
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Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?
Answers: 3
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