MES 2: Matter & Energy: Atomic Structure & Chemical Bonds

Question 0

What is the name given to the bond between a hydrogen atom and an oxygen atom within a single water molecule?

Answer 0

Polar covalent

Question 1

What refers to two or more atoms held together by covalent bonds?

Answer 1

A molecule

Question 2

What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?

Answer 2

6

Question 3

What do we call atoms with the same atomic number but different atomic masses?

Answer 3

Isotopes

Question 4

Fluorine’s atomic number is 9 and its atomic mass is 19. How many neutrons does fluorine have?

Answer 4

10

Question 5

An uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. How many protons does boron have?

Answer 5

5

Question 6

What is an electron’s charge?

Answer 6

Negative (-)

Question 7

What is a proton’s charge?

Answer 7

Positive (+)

Question 8

What is a neutron’s charge?

Answer 8

Neutral (0)

Question 9

Electrically charged atoms are called what?

Answer 9

Ions

Question 10

Combinations of two or more atoms are called what?

Answer 10

Molecules

Question 11

Atoms of the same element with differing numbers of neutrons are called what?

Answer 11

Isotopes

Question 12

When two or more atoms of different elements bond, the resulting molecules are more specifically called what?

Answer 12

Compounds

Question 13

What can sometimes be radioactive and can decay by losing subatomic particles and emitting radiation?

Answer 13

Isotopes

Question 14

What do we call any material that occupies space and has mass?

Answer 14

Matter

Question 15

H2O is an example of what?

Answer 15

A compound

Question 16

What type of bond holds together charged atoms that form molecules?

Answer 16

Ionic bonds

Question 17

What do we call isotopes that emit radiation as they decay into more stable atoms?

Answer 17

Radioisotopes

Question 18

The elements iron (Fe) and sulfur (S) bond when the elements donate and receive electrons between each other. What type of bond is this?

Answer 18

An ionic bond

Question 19

In an atom, what components are located in the nucleus?

Answer 19

Neutrons and protons