crossword
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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Check
Across:
1.
For any element, the atomic numbers are shown as
3.
Rutherford’s alpha-particle scattering experiment led to the discovery of the ......................
5.
.............are the atoms of the diff erent element with same mass number but diff erent atomic number.
Down:
2.
For any element, the mass numbers are shown as
4.
A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron.
OK