Elements

What's the symbol for Iron ?

• I
• Fe
• Ir
• Io

What is the periodic table of Elements?

• Elementals from the mythical world.
• Different natural materials.
• A list of Atoms listed by Atomic Number
• What is the periodic table of Elements

What does the Atomic Number represent? 

• How many atomic explosions this element causes
• What range of numbers the element is in.
• How many atoms are in the element
• How many protons, neutrons and electrons are in the Element.  

Tags

NGSS.MS-PS1-1

What element has the atomic number of 3?

• Beryllium

• Hydrogen

• Lithium

• Helium

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

A one or two letter abbreviation  used to represent an element is called a(n) ________

• chemical symbol
• element sign

Vertical (up and down) columns in the periodic table are called _________ of elements and have similar properties. 

• groups
• periods

The horizontal (left to right) rows on the periodic table are known as

• periods.
• atoms.
• groups or families.
• valence electrons.

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons