Matter occupies () and has (). 

space...mass

time...substance

elements...electrons

cells...atoms

Each element has atoms with a definite number of 

Protons

Neutrons

Electrons

Protons have a mass of () and () charge.

0...positive

1...positive

0...negative

1...negative

1...no

You should expect to find which particles in the nucleus of an atom?

electrons and protons

protons and neutrons

electrons and neutrons

electrons, protons and neutrons

Which of the following has a mass of 1 and no charge?

Electron

Proton

Neutron

To determine the atomic mass of an atom you must know the number of

protons and electrons

protons and neutrons

neutrons and electrons

Electrons have () charge and are found () the nucleus of an atom.

Negative...inside

Negative...outside

Positive...inside

Positive...outside

The atomic number of an element is equal to the number of () found in the atoms of that element.

protons

electrons

neutrons

Which of the following is not one of the four major elements found in living things?

Iron

Carbon

Oxygen

Hydrogen

Nitrogen

Which of the following is not one of the fundamental biological organic molecules found in all living organisms?

Protein

Lipid

Oxygen

Carbohyrdate

Nucleic Acid

The atomic number of an element will never change.

True or False

The atomic mass of all atoms of a given element will always be the same.

True or False

How many electrons could fit in the first shell of an atom?

1

2

3

4

Which two particles would be attracted to each other?

electrons and neutrons

electrons and protons

protons and neutrons

all particles are attracted

Which particles have approximately the same size and mass as each other?

Neutrons and electrons

electrons and protons

protons and neutrons

neutrons, electrons, protons

Atoms of different phosphorus isotopes

have different phosphorus isotopes

have different numbers of neutrons

react differently with other atoms

have different numbers of protons

Oxygen has an atomic number of 8, therefore, it must have

8 protons

4 protons and 4 neutrons

8 neutrons

How an atom behaves when it comes in contact with other atoms is determined by its

nucleus

size

protons

electrons

An ionic bond is one in which

-electrons are shared equally

-electrically neutral atoms have a mutual attraction

-two charged atoms have a mutual attraction due to electron transfer

-electrons are unequally shared

An ion is formed when an atom

forms a covalent bond with another atom

gains or loses an electron

becomes part of a molecule

gains or loses a proton

An atom that normally has () in its outer shell would tend NOT to form chemical bonds with other atoms. 

3 electrons

4 electrons

6 electrons

8 electrons

Fluorine atoms tend to take electrons from atoms that come near. As a result, fluorine atoms

tend to become positively charged

are non polar

do not react readily with other atoms

tend to form ionic bonds

A covalent chemical bond is one in which 

outer shell electrons are shared by two atoms as to satisfactory fill the outer electron shells of both

Potassium is usually written as "K". The positive charge on the potassium ion means that

potassium has lost an electron and is a anion

pottasium has lost an electron and is a cation

The atomic number of sodium is 11. How many electrons would be found in the outer shell of a sodium atom?

1

2

3

6

7

The atomic number of neon is 10. How many electrons would be in the outer shell of a neon atom?

2

4

6

8

10

The atomic number of nitrogen is 7. Nitrogen-15 has a greater mass number than nitrogen-14 because the atomic nucleus of nitrogen-15 contains

7 neutrons

8 neutrons

8 protons

15 protons

What is the maximum number of covalent bonds that an oxygen atom with atomic number 8 can make with hydrogen?

1

2

4

6

How many electrons are involved in a single covalent bond?

one 

two 

three

four

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by:

hydrogen bonds

nonpolar covalent bonds

polar covalent bonds

ionic bonds

How many electron pairs does carbon share to complete its valence shell?

2

3

4

8