Roe Chem Unit 1 Review

Front

How many p orbitals are there in a sublevel?

Back

3

Front

Which of the following substances are elements? (water, salt, carbon dioxide, hydrogen)

Back

Hydrogen

Front

What determines the chemical properties of an atom? (The number of protons in the nucleus, The number of neutrons in the nucleus, The arrangement of electrons in orbitals, The total mass of the nucleus)

Back

The arrangement of electrons in orbitals

Front

Hydrogen needs _____ electrons in its valence shell to be stable.

Back

2

Front

Is this the correct Lewis dot for Chlorine? (yes/no)

Back

yes

Front

What is the definition of an element?

Back

A substance that cannot be broken down into simpler substances by chemical means.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is a Lewis dot structure?

Back

A diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons.

Front

What is the significance of valence electrons?

Back

They determine how an atom can bond with other atoms.

Front

What is the octet rule?

Back

Atoms tend to bond in such a way that they have eight electrons in their valence shell.