Chapter 1: Atoms and Molecules Quiz

Réussis tes devoirs et examens dès maintenant avec Quizwiz!

Atom X has an atomic number of 19 and has a mass number of 39. The number of protons in atom X is equal to

19

Magnesium has 12 protons. How many electrons are in its third energy level?

2

When the outermost electrons are transferred or shared between atoms,

Chemical bonding occurs.

A(n) __________ is formed when two atoms share electrons.

Covalent bond

Radioactive isotopes have

Excess neutrons.

This attractive force, referred to as a type of chemical bond, contributes to the shape of large molecules.

Hydrogen

The atoms of the isotopes of a particular element vary in the number of:

Neutrons

Ninety-six percent of the weight of the body results from all of the following elements EXCEPT:

Potassium

A nonpolar covalent bond implies that ________.

There is no difference in charge at the ends (the two poles) of the bond

An atom that has gained or lost electrons is called an ion.

True


Ensembles d'études connexes

Real Estate Express Chapter 6 ❤️

View Set

Ch. 10: Visually Identifying the five stages of Mitosis

View Set

Practice Questions Ch 1, 2, 10, 11, 12

View Set

Chapter 38: Agents to Control Blood Glucose Levels

View Set

SPANISH II - buscar= to look for

View Set

Math models and applications pt. 3

View Set