Question

Answer Questions 1–6 based on Figure 1.

1. How many protons are shown? _____________________________________
2. In the periodic table, elements are ordered by atomic number, the number of protons in an atom’s nucleus. Using the periodic table in your textbook, identify the element shown. ________________________________________
3. How many electrons are shown? ____________________________________
4. How many electrons are in the outermost energy level? _____
5. If the number of electrons equals the number of protons, then there is no charge, and the model shows a neutral atom. If the numbers are not equal, then you have an ion. Use this reasoning to determine if Figure 1 shows an ion or a neutral atom. _______________________________
To determine a particle’s charge, you must compare the number of protons with the number of electrons. Use the spaces to the right to subtract the number of electrons from the number of protons. (Remember, if the number of electrons is greater than the number of protons, the charge will be negative.)

Answer 1

1. 18 protons

2. Argon

3. 18 electrons

4. 8 electron

5. Neutral Atom

Step-by-step explanation:

count the number of electrons on the shells, number of electrons is equal to the number of protons for a neutral Atom.

since the number of proton is 18 then the element is Argon which has an atomic number of 16.