Periodic Table

Front

How many elements are in their liquid state at room temperature?

Back

2

Front

Which element was the first discovered?

Back

Carbon

Front

Which element has an atomic mass of 19?

Back

Fluorine

Front

What subatomic particle is found outside of the nucleus?

Back

Electron

Front

Which element has 5 protons?

Back

Boron

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are the three main categories of elements in the periodic table?

Back

Metals, Nonmetals, and Metalloids.

Front

What is the most abundant element in the universe?

Back

Hydrogen.

Front

What is the difference between atomic mass and atomic number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while atomic number is the number of protons in the nucleus.