Task: Solve the problems related to atomic structure as shown in the image.
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Part 1: Label the parts of the atom
The diagram shows a basic model of an atom. Here are the labels for each part:
1.
Nucleus: The central part of the atom containing protons and neutrons.
2.
Proton: Positively charged particles in the nucleus.
3.
Neutron: Neutral (no charge) particles in the nucleus.
4.
Electron: Negatively charged particles orbiting the nucleus.
5.
Orbital/Shell: The region around the nucleus where electrons are found.
So, the labels for the diagram would be:
- Top left:
Electron
- Bottom left:
Neutron
- Center:
Proton
- Right side:
Nucleus
- Outer circle:
Orbital/Shell
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####
Part 2: Answer the following questions
1.
What part of the atom has no charge?
-
Neutron: Neutrons are neutral particles with no charge.
2.
What part of the atom has a positive charge?
-
Proton: Protons are positively charged particles.
3.
What part of the atom has a negative charge?
-
Electron: Electrons are negatively charged particles.
4.
How many electrons can be held in the first orbital?
- The first orbital (also called the K-shell) can hold
2 electrons.
5.
How many electrons can be held in the second orbital?
- The second orbital (also called the L-shell) can hold
8 electrons.
6.
The atomic number represents the number of which particles?
- The atomic number represents the number of
protons in the nucleus.
7.
The mass number is determined by the sum of the numbers of which particles?
- The mass number is determined by the sum of the numbers of
protons and
neutrons.
---
####
Part 3: Identify the atoms from their atomic structures
To identify the atoms, we need to count the number of protons (in the nucleus) and electrons (orbiting the nucleus). The number of protons determines the atomic number, which identifies the element.
1.
First Atom:
- Protons: 2
- Electrons: 2
- Atomic number = 2 → This is
Helium (He).
2.
Second Atom:
- Protons: 8
- Electrons: 8
- Atomic number = 8 → This is
Oxygen (O).
3.
Third Atom:
- Protons: 6
- Electrons: 6
- Atomic number = 6 → This is
Carbon (C).
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Final Answers:
#### Part 1: Labels
- Top left: Electron
- Bottom left: Neutron
- Center: Proton
- Right side: Nucleus
- Outer circle: Orbital/Shell
#### Part 2: Questions
1. Neutron
2. Proton
3. Electron
4. 2
5. 8
6. Protons
7. Protons and Neutrons
#### Part 3: Identification
1. Helium (He)
2. Oxygen (O)
3. Carbon (C)
Boxed Final Answer:
\[
\boxed{
\text{1. Electron, Neutron, Proton, Nucleus, Orbital/Shell} \\
\text{2. Neutron, Proton, Electron, 2, 8, Protons, Protons and Neutrons} \\
\text{3. Helium (He), Oxygen (O), Carbon (C)}
}
\]
Parent Tip: Review the logic above to help your child master the concept of chemistry atomic structure worksheet.
