Chemistry 7

Match the subatomic particle with its charge

• Negative

• Electron

• Neutral

• Neutron

• Positive

• Proton

Select the subatomic particles that have a mass of 1 AMU

• Protons

• Neutrons

• Electrons

Select the subatomic particles that are found inside an atom's nucleus

• Protons

• Neutrons

• Electrons

Identify this element

(a)  

Tags

NGSS.MS-PS1-1

If this atom of Chromium has a charge of -2 , how many electrons does it have?

(a)  

Tags

NGSS.MS-PS1-1

Give me Argon's Atomic Number

(a)  

Tags

NGSS.HS-PS1-1

If we round Aluminum's Atomic Mass to the nearest whole number, how many neutrons does it have?

(a)  

Tags

NGSS.MS-PS1-1

Explain why an atom typically has the same number of protons as electrons

How are the elements in the periodic table organized? Select all that apply

• From increasing atomic number

• By number of valence electrons

• By number of electron shells

• From increasing charge

Describe TWO DIFFERENT ways you could find an atom's number of valence electrons if you know it number of protons or its group number (but not both at the same time)