Atom and elements questions

1. What is an atom?
2. What are the three main subatomic particles that make up an atom?
3. How many protons are in the nucleus of an atom?
4. What is an element?
5. How are elements organized on the periodic table?
6. What is the atomic number of an element?
7. What is the atomic mass of an element?
8. How do atoms of different elements differ from each other?
9. How are atoms of the same element similar to each other?
10. How do atoms combine to form molecules?

Atom Questions:

- What is an atom?
- What are the three main particles found in an atom?
- Describe the structure of the nucleus.
- Explain the concept of atomic number.
- Define the term "atomic mass."
- What is the mass number of an atom?
- What is an isotope?
- Explain how to calculate the average atomic mass of an element.
- What is a cation? An anion?

Element Questions:

- Define an element.
- What is the periodic table?
- How are elements organized on the periodic table?
- What is a chemical symbol?
- What is the symbol for the element gold?
- Describe the properties of metals.
- Describe the properties of nonmetals.
- What is the difference between a noble gas and a halogen?
- Give an example of a metalloid.