2. Atoms & Elements

Which particles make up the nucleus of an atom?

How many electrons are present in a neutral atom of copper (Cu)?

How many protons are in a sodium atom?

Which of the following best describes the difference between an atom and a molecule?

Which of the following defines the atomic number of a given element?

Which of the following best describes the composition of a comet?

What electron transition in a hydrogen atom, starting from n = 8, will produce light of wavelength 389 nm?

Which is one piece of information that the atomic number (9) gives about an atom of fluorine?

Which of the following statements accurately describes elements?

How many electrons does a neutral atom of lithium (Li) contain?

Which of the following is considered the basic form of matter?

At which of the following locations in an atom would you find a neutron?

What is true of all atoms?

Which of the following best explains the relationship between molecules and atoms?

How many protons are present in an atom of aluminum?