Index
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Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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8
Check
Across:
1.
This atom has a configuration of 1s2 2s2
4.
A negative ion
6.
These properties are similar in the elements of the same Group
7.
He was the first scientist to describe the atom in terms of energy levels
8.
A region of space where there is a high probability of finding a particular electron
Down:
2.
Negatively-charged sub-atomic particles
3.
An electron with spin generates this kind of field
5.
The number of sub shells in the third energy level
OK
Index
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