SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Two elements have these electronic structures:2, 1 and 2, 8, 1. What can you say about the elements?
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They are both in Group 1.
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They are both in Group 2.
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They are both in period 2.
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None of the above
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Explanation:
Detailed explanation-1: -Q. The electronic configuration of calcium is 2, 8, 8, 2.
Detailed explanation-2: -Therefore, the element K or Potassium has the electronic configuration 2, 8, 8, 1.
Detailed explanation-3: -Element with configuration 2, 8, 1 is Na, sodium being metal forms basic oxide.
Detailed explanation-4: -The electronic structure of sodium (2, 8, 1) shows that sodium, Na: is in period 3. is in group 1. has an atomic number of (2 + 8 + 1) = 11.
There is 1 question to complete.