Practice Nucleus (4.5.1) - Atomic Structure

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What particles are found in the nucleus?
Show hintHide hint
Think of the center of the atom.
Question 2.
What does the atomic number represent?
Show hintHide hint
It identifies the element.
3Question 3.
What particles make up the nucleus of an atom?
- Electrons and protons
- Neutrons and electrons
- Protons and neutrons
Show hintHide hint
Remember, the nucleus is at the center of the atom.
4Question 4.
True or False: Changing the number of protons alters the element's identity.
- True
- False
Show hintHide hint
Think about how we classify elements.
Question 5.
If an atom has 12 protons and 13 neutrons, what is its atomic number, mass number, and identify the element?
Show hintHide hint
Remember that the atomic number defines the element.
Question 6.
If a nitrogen atom has 8 neutrons, what is its mass number, and what isotope is it?
Show hintHide hint
Use the atomic number of nitrogen and add the neutrons.

5 more questions in this section. Enroll free to practise them all.