Question

This is a model of a lithium atom. The red and blue subatomic particles found in the nucleus are the __________ and __________. The sum of these subatomic particles equals the atomic ____________.

A protons and neutrons; mass number protons and neutrons; mass number
B protons and electrons; mass number protons and electrons; mass number
C protons and neutrons; atomic number protons and neutrons; atomic number
D protons and neutrinos; identification number

Answer 1

The correct answer is: C) protons and neutrons; atomic number

In a lithium atom: Protons (positively charged particles) and neutrons (neutral particles) are found in the nucleus. The sum of protons and neutrons in the nucleus gives the mass number of the atom.

The atomic number is equal to the number of protons in the nucleus, which determines the element. The correct answer is: C) protons and neutrons; atomic number. : Protons (positively charged particles) and neutrons (neutral particles) are found in the nucleus.