Periodic Table & Trends

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons does Potassium (K) have?

Back

Potassium (K) has 1 valence electron.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Which element has a greater electronegativity: Nitrogen (N) or Carbon (C)?

Back

Nitrogen (N) has a greater electronegativity than Carbon (C).

Front

What happens to electronegativity as you move down Group 16 in the periodic table?

Back

Electronegativity decreases as you move down Group 16.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, and they are found along the staircase line in the periodic table.

Front

Which of the following is a halogen: Helium, Chlorine, Oxygen, or Neptune?

Back

Chlorine is a halogen.

Front

What is the general trend of atomic radius in the periodic table?

Back

Atomic radius increases as you move down a group and decreases as you move across a period from left to right.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are alkali metals?

Back

Alkali metals are the elements in Group 1 of the periodic table, known for being highly reactive and having one valence electron.