1st Semester final review #3: Periodic Table/Trends

Front

What is a stable octet?

Back

A stable octet refers to an atom having eight electrons in its outermost shell, which makes it chemically stable and less likely to react with other elements.

Front

Which element is not a metal?

Back

Hydrogen (H) is not a metal; it is a non-metal.

Front

What do neutral atoms contain equal numbers of?

Back

Neutral atoms contain equal numbers of protons and electrons.

Front

Why does argon tend not to bond with other elements?

Back

Argon tends not to bond with other elements because it has a total of eight valence electrons, making it stable.

Front

What is a horizontal row in the periodic table called?

Back

A horizontal row in the periodic table is called a period.

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

What is the periodic law?

Back

The periodic law states that the properties of elements are a periodic function of their atomic numbers.

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom and determines the element's identity.

Front

What is a group in the periodic table?

Back

A group is a vertical column in the periodic table that contains elements with similar chemical properties.

Front

What is the difference between metals and non-metals?

Back

Metals are typically shiny, conductive, and malleable, while non-metals are usually dull, insulative, and brittle.