The Periodic Table Flashcard

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

How many valence electrons does carbon have?

Back

Carbon has 4 valence electrons.

Front

What is the definition of a non-metal?

Back

Non-metals are elements that typically lack the characteristics of metals, such as conductivity and malleability, and are often poor conductors of heat and electricity.

Front

Which element is a non-metal in group 14?

Back

Carbon (C) is a non-metal in group 14.

Front

What is a metal?

Back

Metals are elements that are typically shiny, malleable, ductile, and good conductors of heat and electricity.

Front

What is the definition of a metalloid?

Back

Metalloids are elements that have properties of both metals and non-metals.

Front

What are halogens?

Back

Halogens are a group of non-metal elements in group 17 of the periodic table, known for their reactivity.

Front

What is atomic mass?

Back

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is the atomic mass of iron (Fe)?

Back

The atomic mass of iron (Fe) is 55.845.

Front

What is the significance of element groups in the periodic table?

Back

Elements in the same group have similar chemical properties due to having the same number of valence electrons.