Answer:
A)21
Explanation:
To know the difference between the number of electrons in the two atoms, we must first know the number of electrons in the atoms.
For Selenium, Se, we have 34 electrons. The element is in group 6 on the periodic table.
Aluminum on the other hand is in the Boron family with a total of 13 electrons.
The difference,( 34-13) electrons gives a total of 21 electrons
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The correct answer would be option D
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It is 6 which is the atomic number of carbon.
Answer:its D.
Explanation:
Energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat energy.
The answer is 329. Because 273 + 56 = 329.