Question

an atom containing six positive charges and six negative charges has ____________ charge.

• 2 points

a positive
a negative
a strong negative
no charge
scientists have broken down protons and neutrons into smaller particles called ____________ * 2 points
nuclei
quarks
vacuoles
isotopes

Explanation:

1. For the first question, positive and negative charges of equal magnitude cancel each other out. Six positive and six negative charges result in a net - charge of zero.
2. For the second question, protons and neutrons are made up of smaller particles called quarks. Nuclei are the central part of an atom containing protons and neutrons, vacuoles are cell - organelles, and isotopes are atoms of the same element with different numbers of neutrons.

Answer:

1. D. no charge
2. B. quarks