Question 7 1 pts
Which particles are found in the nucleus of an atom?
O protons and electrons
electrons and neutrons
o protons and neutrons
O protons, neutrons, and electrons
Question 8
1 pts

Protons and Neutrons

Explanation:

The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral. Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .