Match items with their appropriate chemical description. -The small, dense center of an atom A)S B)H+ C)Electron D)Proton E)Neutron F)CO₂ G)Na H)nucleus I)mass number J)NO³- K)isotopes

Question

Quizplus · Accepted Answer

The small, dense center of an atom is called the nucleus.

Answer: D
 The proton is a positively charged particle found in the nucleus of an atom.

Answer: E
 The neutron is a particle found in the nucleus of an atom that has no charge.

Answer: K
 Isotopes are atoms of the same element that have different numbers of neutrons in their nuclei.

Answer: I
 The mass number is the total number of protons and neutrons in the nucleus of an atom.

Answer: J
 The nitrite ion has a charge of -1 and is represented as NO2-.

Match Items with Their Appropriate Chemical Description