Elements and the Periodic Table

How are the elements in the periodic table arranged?

• by the number of neutrons

• by the atomic number of an element

• by the atomic mass of an element

How many protons are in Beryllium?

• 4
• 9
• 5
• 2

Tags

NGSS.MS-PS1-1

What does the atomic number of an element tell you?

• the number of neutrons

• the number of valence electrons

• the number of electrons

• the number of protons

How many protons does this element contain?

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

No two elements have the same atomic number.

• True

• False

The chemical symbol of an element

• tells the total number of protons and neutrons in the nucleus.

• is a letter or letters that stand for the name of the element.

• are pictures that stand for the element.

The vertical columns on the periodic table are called:

• periods

• elements

• groups

• matter

The horizontal rows on the periodic table are called:

• periods

• elements

• groups

• matter

As you move from left to right across the periodic table, the atomic number increases. 

• True
• False

_______ are the ROWS on the periodic table and are arranged according to their reactivity.

• Families
• Groups
• Periods
• Elements