Atomic Structure

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

The Atomic number is known as the _______

• Number of electrons in an atom

• Number of Protons in an atom

• Number of neutrons in an atom

• Number of Protons and electrons in an atom

An atom is said to be neutral if it has same number of electrons and...…..

• electrons

• protons

• neutrons

• ions

The central region of an atom where neutrons and protons are located is the __________________.

• nucleus 
• electron cloud
• core 
• center 

What is the maximum (most) amount of electrons that can fit in the first ring? (closest to the nucleus)

• 2

• 8

• 4

• 6

How many electrons does this picture show?

• 4
• 5
• 6
• 3

Tags

NGSS.MS-PS1-1

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

• 18 protons

• 40 protons

• 22 protons

• 21.9 protons

Tags

NGSS.MS-PS1-1