Periodic Table Flashcard

Front

What is the symbol for Helium on the Periodic Table?

Back

He

Front

What is the atomic weight of Lithium (Li)?

Back

6.94

Front

What is the symbol for Gold on the periodic table?

Back

Au

Front

What is the atomic number of potassium?

Back

19

Front

What are isotopes?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons.

Front

What is the atomic number?

Back

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

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 is the difference between atomic mass and atomic weight?

Back

Atomic mass is the mass of a single atom, while atomic weight is the average mass of an element's isotopes, weighted by their natural abundance.

Front

What is a noble gas?

Back

Noble gases are a group of elements in Group 18 of the Periodic Table that are characterized by their lack of reactivity due to having a full valence shell.

Front

What is a metal?

Back

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