18. How are the following two.atoms related to one another? Particle Atom 1 Atom 2 Proton 15 15 Neutron 16 17 Electron 18 15 A) They are different elements B) They are isotopes of the same element C) They are the same element BUT one is a cation D) They are BOTH ions of the same element E) They are BOTH isotopes AND ions of the same element M02 M 00 M20 M02

Chemistry
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Chapter1: Chemical Foundations
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**Question 18:** How are the following two atoms related to one another?

| Particle | Atom 1 | Atom 2 |
|----------|--------|--------|
| Proton   | 15     | 15     |
| Neutron  | 16     | 17     |
| Electron | 18     | 15     |

**Options:**
A) They are different elements  
B) They are isotopes of the same element  
C) They are the same element BUT one is a cation  
D) They are BOTH ions of the same element  
E) They are BOTH isotopes AND ions of the same element  

---

**Explanation:**

- Both Atom 1 and Atom 2 have the same number of protons (15), indicating they are the same element.
- Atom 1 has 16 neutrons, while Atom 2 has 17 neutrons, indicating they are isotopes of each other.
- Atom 1 has 18 electrons, whereas Atom 2 has 15, indicating that Atom 1 is an anion (with a negative charge) and Atom 2 is neutral or possibly a cation (if charged positively).

Therefore, **Option E** is correct: They are BOTH isotopes AND ions of the same element.
Transcribed Image Text:**Question 18:** How are the following two atoms related to one another? | Particle | Atom 1 | Atom 2 | |----------|--------|--------| | Proton | 15 | 15 | | Neutron | 16 | 17 | | Electron | 18 | 15 | **Options:** A) They are different elements B) They are isotopes of the same element C) They are the same element BUT one is a cation D) They are BOTH ions of the same element E) They are BOTH isotopes AND ions of the same element --- **Explanation:** - Both Atom 1 and Atom 2 have the same number of protons (15), indicating they are the same element. - Atom 1 has 16 neutrons, while Atom 2 has 17 neutrons, indicating they are isotopes of each other. - Atom 1 has 18 electrons, whereas Atom 2 has 15, indicating that Atom 1 is an anion (with a negative charge) and Atom 2 is neutral or possibly a cation (if charged positively). Therefore, **Option E** is correct: They are BOTH isotopes AND ions of the same element.
Expert Solution
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The atoms with the same number of protons but different numbers of neutrons or mass numbers are known as isotopes. The chemical properties of isotopes are the same.

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