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Situation 1
Mass number = 35
No. of protons = 17
Net charge = -1

3.What is the atomic number?
(1 Point)
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4.How many neutrons are there?
(1 Point)
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5.How many electrons are there?
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6.What type of atom is it?Immersive Reader
(1 Point)

neutral

cation

anion

Situation 2
Number of protons = 35
Number of neutrons = 46
Net charge = -1
7.What is its atomic number?
(1 Point)
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8.What is its mass number?
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9.How many electrons are there?
(1 Point)
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10.What type of atom is it?Immersive Reader
(1 Point)

neutral

cation

anion

Situation 3
Atomic number = 37
Mass number = 85
Number of electrons = 36
11.How many protons are there?
(1 Point)
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12.How many neutrons are there?
(1 Point)
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13.What is its net charge?
(1 Point)
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14.What type of atom is it?Immersive Reader
(1 Point)

neutral

cation

anion

Situation 4
Mass number = 11
Number of neutrons = 6
Net charge = +3
15.What is its atomic number?
(1 Point)
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16.How many protons are there?
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17.How many electrons are there?
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18.What type of atom is it?Immersive Reader
(1 Point)

neutral

cation

anion

Sagot :

Answer:

3. 17

4. 18

5. 10

6. Cation

7. 35

8. 81

9. 36

10. Anion

11. 37

12. 48

13. +1

14. Cation

15. 5

16. 5

17. 2

18. Cation

Explanation:

Situation 1

The mass number = 35 = The sum of the protons and the neutrons in an atom

The number of protons = 17

The net charge = 1

3. The atomic  number = The number of proton = 17

4. The number of neutrons = Mass number - Atomic number

∴ The number of neutrons = 35 - 17 = 18

5. Given that the net charge of the atom = +1, the number of electrons in the atom is 1 less than the number of protons

Therefore, the number of electrons = 11 - 1 = 10

6. Positively charged ions are called a cation

The atom is a positively charged and it is therefore it is a cation

Situation 2

The number of protons =  35

The number of neutrons = 46

The net charge = -1

7. The atomic number = The number of protons = 35

8. The mass number = The number of protons + The number of neutrons

∴ The mass number = 35 + 46 = 81

9. The number of electrons = The number of protons + 1

∴ The number of electrons = 35 + 1 = 36

10. The type of atom is an anion

Situation 3

Atomic number = 37

Mass number = 85

Number of electrons = 36

11. The number of protons = The atomic number = 37

12. The number of neutrons = The mass number - The atomic number

∴ The number of neutrons = 85 - 37 = 48

13. The net charge = The atomic number - The number of electrons

∴ The net charge = 37 - 36 = +1

14. Given that the net charge = +1, the type of atom is a cation

Situation 4

Mass number = 11

Number of neutrons = 6

Net charge = +3

15. The atomic number = The mass number - The number of neutrons

∴ The atomic number = 11 - 6 = 5

16. The number of protons = The atomic number = 5

17. Given that the net charge is +3, we have;

The number of electrons = The number of protons - The net charge

∴ The number of electrons = 5 - (+3) = 2

18. The type of atom with a net positive charge (+3) is a cation

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