Question

the structure of the atom
quiz complete
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59:20
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the table below gives the numbers of protons, electrons, and neutrons in four atoms.
atom | number of protons | number of neutrons | number of electrons
1 | 9 | 8 | 9
2 | 9 | 9 | 8
3 | 9 | 9 | 10
4 | 9 | 10 | 9
based on the table, which atom has a charge of -1?
○ 1
○ 2
○ 3
○ 4

Explanation:

3: Calculate charge for Atom 2
$9 - 8 = +1$

Step4: Calculate charge for Atom 3

$9 - 10 = -1$

Step5: Calculate charge for Atom 4

$9 - 9 = 0$

Answer:

3: Calculate charge for Atom 2
$9 - 8 = +1$

Step4: Calculate charge for Atom 3

$9 - 10 = -1$

Step5: Calculate charge for Atom 4

$9 - 9 = 0$