Interactive worksheet for labeling and understanding the parts of a periodic table element box, using iron as an example.

Problem Analysis:

The image shows a box from the Periodic Table for the element Iron (Fe). The task is to label the parts of the box and answer questions related to the properties of Iron.

#### Labeling the Parts of the Periodic Table Box:
1. Atomic Number: This is the number at the top left of the box, which is 26.
2. Elemental Symbol: This is the abbreviation for the element, which is Fe.
3. Element Name: This is the full name of the element, which is Iron.
4. Atomic Mass: This is the number at the bottom of the box, which is 55.845.

Questions and Solutions:

#### 1. How many protons does iron have?
- The number of protons in an atom is equal to its atomic number.
- From the periodic table box, the atomic number of Iron is 26.
- Therefore, Iron has 26 protons.

#### 2. How do you determine the number of protons an element has?
- The number of protons in an atom is always equal to the atomic number of the element.
- The atomic number is located at the top left of the element's box in the Periodic Table.

#### 3. How many neutrons does iron have?
- The number of neutrons in an atom can be calculated using the formula:
\[
\text{Number of Neutrons} = \text{Atomic Mass (rounded to the nearest whole number)} - \text{Atomic Number}
\]
- For Iron:
- Atomic Mass = 55.845 (round to 56)
- Atomic Number = 26
- Number of Neutrons = 56 - 26 = 30
- Therefore, Iron has 30 neutrons.

#### 4. How do you figure out the number of neutrons that an element has?
- To find the number of neutrons:
1. Round the atomic mass to the nearest whole number.
2. Subtract the atomic number from the rounded atomic mass.
\[
\text{Number of Neutrons} = \text{Rounded Atomic Mass} - \text{Atomic Number}
\]

#### 5. What is the mass of iron’s electrons?
- Electrons have a very small mass compared to protons and neutrons. The mass of one electron is approximately 9.11 × 10⁻³¹ kg or 0.00054858 amu.
- However, in most calculations involving atomic mass, the mass of electrons is considered negligible because it is so small.

#### 6. What is the proper way to write an elemental symbol?
- An elemental symbol is a one- or two-letter abbreviation for an element. It is written with the first letter capitalized and the second letter (if present) in lowercase.
- For example:
- Hydrogen: H
- Carbon: C
- Iron: Fe (from the Latin word "Ferrum")

Final Answers:

1. How many protons does iron have?
\boxed{26}

2. How do you determine the number of protons an element has?
The number of protons is equal to the atomic number, which is located at the top left of the element's box in the Periodic Table.

3. How many neutrons does iron have?
\boxed{30}

4. How do you figure out the number of neutrons that an element has?
Subtract the atomic number from the rounded atomic mass.

5. What is the mass of iron’s electrons?
The mass of one electron is approximately \(9.11 \times 10^{-31}\) kg or \(0.00054858\) amu.

6. What is the proper way to write an elemental symbol?
Write the first letter capitalized and the second letter (if present) in lowercase. For example, Iron is written as Fe.

Final Answer Summary:

\[
\boxed{26, 30}
\]