Y9 LC1 CHEM HWK WK3 - Atomic structure

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.HS-PS2-4

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Tags

NGSS.HS-PS1-8

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

True or False - Protons and Neutrons have about the same mass.

• True - They have about the same mass
• False - They do not have about the same mass

Which two subatomic particles make up the nucleus of an atom?

• Protons and Electrons
• Neutrons and Electrons
• Electrons and Protons
• Protons and Neutrons

Tags

NGSS.HS-PS1-8

How many electrons does this picture show?

• 4
• 5
• 6
• 3

Tags

NGSS.HS-PS1-1

An element's Atomic Number (bottom) is equal to its number of?

• Neutrons and protons

• Protons and electrons

• Electrons and neutrons

If an atom is neutral, what charge does it have?

• Positive Charge

• No Charge

• Negative Charge

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

• 20
• 10
• 5
• 25

Tags

NGSS.MS-PS1-1