Chemistry Midterm 2024

Front

What is the overall charge of an ion with 9 protons, 11 neutrons, and 10 electrons?

Back

-1

Front

How many electrons does potassium (K) contain?

Back

19

Front

How many dots will surround Fluorine (F) in its Lewis Dot symbol?

Back

7

Front

Ionic bonds form between metals and ____.

Back

nonmetals

Front

The atomic number of an atom or ion refers to the number of:

Back

protons

Front

What is the definition of an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions (loss of electrons), while anions are negatively charged ions (gain of electrons).

Front

What is the significance of the atomic number in the periodic table?

Back

The atomic number determines the identity of an element and its position in the periodic table.

Front

What is a Lewis Dot Structure?

Back

A Lewis Dot Structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.