Question
You're selecting pictures for a class presentation on your new favorite element, oxygen, O. You're told this is a correct model of an atom of this element. Select all that are true. (4 points) Responses The blue dots represent electrons in the electron cloud. The blue dots represent electrons in the electron cloud. There are 8 protons located in the nucleus. There are 8 protons located in the nucleus. The total mass of this atom is a combination of red and yellow dots. The total mass of this atom is a combination of red and yellow dots. There are 8 electrons located in the nucleus. There are 8 electrons located in the nucleus. The valence of oxygen is 6. The valence of oxygen is 6. The valence is determined by the red yellow dots. The valence is determined by the red yellow dots. Skip to navigation
Answers
GPT-4o mini
Let's analyze the statements regarding the oxygen atom:
1. **The blue dots represent electrons in the electron cloud.** - This statement is **true**. Electrons exist in an electron cloud around the nucleus.
2. **There are 8 protons located in the nucleus.** - This statement is **true**. Oxygen has an atomic number of 8, meaning it has 8 protons in its nucleus.
3. **The total mass of this atom is a combination of red and yellow dots.** - Assuming the red dots represent protons and the yellow dots represent neutrons, this statement is **true**. The mass of an atom primarily comes from its protons and neutrons.
4. **There are 8 electrons located in the nucleus.** - This statement is **false**. Electrons are found in the electron cloud, not in the nucleus.
5. **The valence of oxygen is 6.** - This statement is **false**. Oxygen has 6 valence electrons (in the second electron shell) and normally forms bonds by gaining or sharing 2 more electrons to achieve a full shell, but it does not have a valence of 6.
6. **The valence is determined by the red and yellow dots.** - This statement is **false**. Valence electrons are determined by the electrons in the outermost shell of the atom, not by protons (red dots) or neutrons (yellow dots).
### Summary of True Statements
- The blue dots represent electrons in the electron cloud.
- There are 8 protons located in the nucleus.
- The total mass of this atom is a combination of red and yellow dots.
1. **The blue dots represent electrons in the electron cloud.** - This statement is **true**. Electrons exist in an electron cloud around the nucleus.
2. **There are 8 protons located in the nucleus.** - This statement is **true**. Oxygen has an atomic number of 8, meaning it has 8 protons in its nucleus.
3. **The total mass of this atom is a combination of red and yellow dots.** - Assuming the red dots represent protons and the yellow dots represent neutrons, this statement is **true**. The mass of an atom primarily comes from its protons and neutrons.
4. **There are 8 electrons located in the nucleus.** - This statement is **false**. Electrons are found in the electron cloud, not in the nucleus.
5. **The valence of oxygen is 6.** - This statement is **false**. Oxygen has 6 valence electrons (in the second electron shell) and normally forms bonds by gaining or sharing 2 more electrons to achieve a full shell, but it does not have a valence of 6.
6. **The valence is determined by the red and yellow dots.** - This statement is **false**. Valence electrons are determined by the electrons in the outermost shell of the atom, not by protons (red dots) or neutrons (yellow dots).
### Summary of True Statements
- The blue dots represent electrons in the electron cloud.
- There are 8 protons located in the nucleus.
- The total mass of this atom is a combination of red and yellow dots.