(9th Grade) Notes 4 Test Review - Part 2

Front

Which group contains elements that form diatomic molecules?

Back

Group 17 contains elements that form diatomic molecules, such as H2, O2, and N2.

Front

What determines an atom's reactivity?

Back

An atom's reactivity is determined by its valence electrons, which are the electrons in the outermost shell.

Front

Describe the typical properties of metals.

Back

Metals are typically good conductors of electricity, malleable, ductile, and have a shiny appearance.

Front

What happens to atomic radius as you move across a period in the periodic table?

Back

The atomic radius decreases as you move from left to right across a period due to increased nuclear charge.

Front

Where are metals located on the periodic table?

Back

Metals are found on the left side of the periodic table.

Front

What are diatomic molecules?

Back

Diatomic molecules are molecules composed of two atoms, which can be of the same or different chemical elements.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons are significant because they are involved in forming bonds between atoms, determining an element's chemical properties.

Front

What is the trend in reactivity for alkali metals as you move down the group?

Back

The reactivity of alkali metals increases as you move down the group.

Front

What is the difference between metals and nonmetals in terms of conductivity?

Back

Metals are good conductors of electricity, while nonmetals are generally poor conductors.

Front

What is the general trend of ionization energy across a period?

Back

Ionization energy generally increases as you move from left to right across a period.