Chem '24-'25 Semester 1 Review

Front

The Alkaline Earth Metals are also known as Group # _____?

Back

2

Front

If an electron moves from n=4 to n=2, it ____?

Back

releases energy

Front

What is the volume of a substance if the answer is 45?

Back

45

Front

What is the hyphen notation of an atom of calcium with 20 protons, 20 electrons, and 22 neutrons?

Back

calcium - 42

Front

Which state of matter has both definite shape and definite volume?

Back

Solid

Front

What are the characteristics of Alkaline Earth Metals?

Back

They are reactive with water, less so than Alkali Metals, and include elements like magnesium and calcium.

Front

What is the electron configuration of Calcium (Ca)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

Front

Define the term 'ionization energy'.

Back

The energy required to remove an electron from an atom or ion.

Front

What is the difference between an ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the significance of the atomic number?

Back

It represents the number of protons in an atom and determines the element's identity.