12 Week Key Terms Reteach Tutorial

Front

What is a halogen?

Back

Halogens are a group of elements in Group 17 of the periodic table, known for their reactivity. Examples include Fluorine, Chlorine, Bromine, Iodine, and Astatine.

Front

Which element is a halogen?

Back

Fluorine is a halogen.

Front

What happens to ionization energy as you move down a group in the periodic table?

Back

Ionization energy decreases as you move down a group due to increased atomic size and shielding effect.

Front

Why are alkali metals highly reactive?

Back

Alkali metals have one valence electron that is easily lost, making them highly reactive.

Front

What is the trend in atomic radius as you move down a group in the periodic table?

Back

The atomic radius increases as you move down a group due to the addition of electron shells.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in an atom, which determines the element's identity.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are crucial in determining how an element reacts chemically.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond.

Front

How does atomic size change across a period in the periodic table?

Back

Atomic size decreases across a period from left to right due to increasing nuclear charge pulling electrons closer.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.