Intro to Periodic Table Organization Lab

Front

How many different kinds of atoms is any element made of?

Back

1

Front

What does the mass number of an element represent?

Back

The sum of an element's protons and neutrons.

Front

What is an element?

Back

An element is a basic building block of matter, made up of atoms with the same number of protons.

Front

What does the atomic number of an element represent?

Back

The number of protons in an atom.

Front

Who first organized the elements in the Periodic Table?

Back

Dmitri Mendeleev.

Front

What is the Periodic Table?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What are periods in the Periodic Table?

Back

Horizontal rows in the Periodic Table that indicate the number of electron shells.

Front

What are groups in the Periodic Table?

Back

Vertical columns in the Periodic Table that indicate elements with similar chemical properties.

Front

What is an isotope?

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the significance of the atomic mass?

Back

It represents the average mass of an element's isotopes, weighted by their natural abundance.