Chemistry Semester 1 Review Flashcard

Front

What is a claim in scientific terms?

Back

A statement that can be tested and verified through observation and experimentation.

Front

What is the Lewis dot model?

Back

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

Front

How many valence electrons does Lithium have?

Back

1

Front

How many valence electrons does Neon have?

Back

8

Front

How many valence electrons does Aluminium have?

Back

3

Front

What is the charge of a calcium ion?

Back

+2

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms.

Front

What is the difference between a claim and a fact?

Back

A claim is a statement that requires evidence, while a fact is a statement that can be proven true.

Front

What does it mean for an atom to be stable?

Back

An atom is stable when its outer electron shell is full, typically having 8 electrons (octet rule).

Front

What is the octet rule?

Back

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