Question

(C.6B) Match each term and definition.
Group of answer choices
This is a subatomic particle with a negative charge and very little mass.

Neutron
This is an atom that has lost or gained electrons.

Isotopes
This is a group of protons and neutrons in the center of all atoms.

[ Choose ]
This is a subatomic particle with a positive charge and a mass of 1 amu.

[ Choose ]
This is a subatomic particle with no charge and a mass of 1 amu.

[ Choose ]
Atoms of the same element with varying number of neutrons.

[ Choose ]

Flag question: Question 2
Question 21 pts
(C.6B) Many people believe that the atomic number of the atom is the number of electrons in the atom. Describe when this is the case.
Group of answer choices

Whether the atom is neutral or charged the number of electrons is always a unique identifier.

As the atom absorbs photons the electrons excite and produce unique emission spectrum.

Through radioactive decay the electrons and neutrons form unique atomic number isotopes.

When the atom is neutral and the number of electrons and the number of protons are equal.

Flag question: Question 3
Question 32 pts
(C.6E) Use the periodic table and your knowledge of atomic structure to match each element with the correct electron configuration.

Link to the periodic table: Online Periodic TableLinks to an external site.

The electron configuration for
[ Select ]
is 1s22s22p63s23p64s23d104p3.

The electron configuration for
[ Select ]
is 1s22s22p63s23p3.

The electron configuration for
[ Select ]
is 1s22s22p63s1.

The electron configuration for
[ Select ]
is 1s22s22p63s23p5.

The electron configuration for
[ Select ]
is 1s22s22p63s23p64s23d4.

Answer 1

Sure! Let's go through your questions one by one.

### Question 1: Match each term and definition.
1. **This is a subatomic particle with a negative charge and very little mass.**
**Answer:** Electron

2. **This is an atom that has lost or gained electrons.**
**Answer:** Ion

3. **This is a group of protons and neutrons in the center of all atoms.**
**Answer:** Nucleus

4. **This is a subatomic particle with a positive charge and a mass of 1 amu.**
**Answer:** Proton

5. **This is a subatomic particle with no charge and a mass of 1 amu.**
**Answer:** Neutron

6. **Atoms of the same element with varying number of neutrons.**
**Answer:** Isotopes

### Question 2: Describe when this is the case.
**Correct Option:** When the atom is neutral and the number of electrons and the number of protons are equal.
Explanation: The atomic number is defined as the number of protons in an atom. In a neutral atom, the number of protons is equal to the number of electrons, making the atomic number also equal to the number of electrons.

### Question 3: Match each element with the correct electron configuration.
To accurately do this, I would need to identify the specific elements you're referring to. However, here are some possible matches based on common elements:

1. **The electron configuration for** **[Select]** **is 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p³. (This matches Arsenic, As - Atomic Number 33).**
- **Element:** Arsenic (As)

2. **The electron configuration for** **[Select]** **is 1s²2s²2p⁶3s²3p³. (This matches Phosphorus, P - Atomic Number 15).**
- **Element:** Phosphorus (P)

3. **The electron configuration for** **[Select]** **is 1s²2s²2p⁶3s¹. (This matches Sodium, Na - Atomic Number 11).**
- **Element:** Sodium (Na)

4. **The electron configuration for** **[Select]** **is 1s²2s²2p⁶3s²3p⁵. (This matches Chlorine, Cl - Atomic Number 17).**
- **Element:** Chlorine (Cl)

5. **The electron configuration for** **[Select]** **is 1s²2s²2p⁶3s²3p⁶4s²3d⁴. (This matches Titanium, Ti - Atomic Number 22).**
- **Element:** Titanium (Ti)

Please double-check the matching of specific electron configurations to their respective elements against the periodic table to ensure accuracy. If you have specific element choices, please provide them for accurate matches!