Atoms and the Periodic Table 2024

Front

The Modern Periodic Table of Elements is arranged by: atomic mass, atomic number, valence electrons, number of isotopes

Back

atomic number

Front

What are the vertical (up and down) columns in the Periodic Table called?

Back

groups

Front

Sodium (Na) is found in period

Back

3

Front

Why is the overall charge of an atom neutral (0)?

Back

They have the same number of protons and electrons.

Front

Number of valence electrons for Barium (Ba)?

Back

2

Front

How many valence electrons does Lithium (Li) have?

Back

1

Front

How many valence electrons does Neon (Ne) have?

Back

8

Front

What is an ion?

Back

A Charged Atom

Front

An atom becomes _________ when it gains electrons.

Back

Negative

Front

According to Ernest Rutherford, and our current model, the atom is mostly...

Back

empty space