brain pop Chemical bonds

If an atom has no charge, which of the following must be true?

• it has more neutrons than protons or electrons.

• there are only neutrons inside the atom

• the number of protons is equal to the number of electrons

• the neutrons in the atom outnumber the protons and electrons

Based on what you know about atomic structure, what can you infer about the word "nuclear?"

• it relates to protons and neutrons

• it relate to electrons only

• it relates to neutrons only

• it relates to ions only

Which of these is an ion?

• a

• b

• c

• d

An atom with 10 electrons must have how many shells?

• 1

• 2

• 8

• 10

Which of the following atoms is most likely to bond with another atom?

• a

• b

• c

• d

An atom has 15 total electrons. How many electrons does it have in its outer shell?

• 3

• 4

• 5

• 6

The relationship between the number of electrons in an atom's outer shell and the atom's tendency to bond is called the octet rule. What can you infer about the meaning of "octet?"

• it refers to negative charge

• it refers to sets of eight

• it refers to explosives substances

• it refers to different states of matter

Atom A has seven electrons in its outer shell. Atom B has one electron in its outer shell. They react and bond. Now both atoms have eight electrons in their outer shells. What kind of bond has formed?

• covalent

• ionic

• metalic

• electron

Cations have positive charges. Anions have negative charges. What force draws the two together?

• magnetic attraction

• ionic attraction

• electromagnetic attraction

• electrostatic attraction

Substance M is a blue, brittle solid. Substance N is a colorless, flammable gas. What can we predict about the compound created when M and N form a covalent bond?

• it would be a liquid since M is a solid, and N is a gas

• it would be Blue since M is blue and N is colorless

• it will probably be flammable since N is flammable

• there's no way to tell based on the given information