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Based on the table, which atom has a charge of -1?

| 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 |

A. Atom 1
B. Atom 2
C. Atom 3
D. Atom 4

Sagot :

GinnyAnswer
To solve this problem, we'll go through each atom provided in the table and calculate the charge for each one. The charge of an atom is determined by the difference between the number of protons and the number of electrons. The formula to calculate the charge is given by:

[tex]\[ \text{Charge} = \text{Number of protons} - \text{Number of electrons} \][/tex]

Let's examine each atom and compute its charge:

1. Atom 1:
- Number of protons: 9
- Number of electrons: 9
- Charge: [tex]\( 9 - 9 = 0 \)[/tex]

2. Atom 2:
- Number of protons: 9
- Number of electrons: 8
- Charge: [tex]\( 9 - 8 = 1 \)[/tex]

3. Atom 3:
- Number of protons: 9
- Number of electrons: 10
- Charge: [tex]\( 9 - 10 = -1 \)[/tex]

4. Atom 4:
- Number of protons: 9
- Number of electrons: 9
- Charge: [tex]\( 9 - 9 = 0 \)[/tex]

Now that we have computed the charges for each atom, we can see that Atom 3 has a charge of -1.

Therefore, the atom which has a charge of -1 is:

Atom 3.
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