Question

Which statement about this atom is FALSE?



Use the Periodic Table to help you.





(1 point)
Responses

This is a chlorine atom.
This is a chlorine atom.

The atomic number of this atom is 18.
The atomic number of this atom is 18.

The atoms has an overall charge of 0.
The atoms has an overall charge of 0.

The mass of the atom is 35 AMU.

Answer 1

To determine which statement about the atom is false, let's analyze each statement based on what we know about chlorine.

1. **This is a chlorine atom.**
- True. Chlorine is a chemical element with the symbol Cl.

2. **The atomic number of this atom is 18.**
- False. The atomic number of chlorine (Cl) is 17, not 18. The atomic number indicates the number of protons in an atom, and the atomic number 18 corresponds to argon (Ar).

3. **The atom has an overall charge of 0.**
- This could be true. If we are referring to a neutral chlorine atom (without any charge), it would have a charge of 0.

4. **The mass of the atom is 35 AMU.**
- This is generally true for the most common isotope of chlorine, which has an atomic mass of approximately 35.5 AMU.

Based on this analysis, the false statement is:

**The atomic number of this atom is 18.**