Periodic Table Organization

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

The horizontal rows of elements in the periodic table are called

• Families

• Groups

• Periods

• Elements

________ are the COLUMNS on the periodic table and are organized by similar properties.

• Classifications
• Groups
• Periods
• Elements

Tags

NGSS.HS-PS1-2

Atoms with similar properties are most likely located...

• in the same period.

• in the same group or family.

Tags

NGSS.HS-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

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

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.

Which element has 2 valence electrons and is in period 6?

• O

• He

• Ba

The periodic table got its name from the _?_.

• repeating similarities in the properties of elements

• punctuation after chemical symbols

• shape of the table

• last name of the founder