Atomic structure

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

subatomic particles found on the outermost shell & responsible for the atom's reactivity

• neutrons
• valence electrons
• isotopes
• ions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Where electrons are likely to be found as they travel around the nucleus

• Nucleus
• Electron Cloud
• Within a Proton
• Within a Neutron

Value representing the number of protons in an element

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

Tags

NGSS.HS-PS1-7

How many neutrons does calcium have?

• 20

• 40

• 60

• 0

What is the charge of a proton?

• Neutral

• Positive

• Variable

• Negative

Which particle is found in the nucleus of an atom?

• Proton

• Electron

• Neutron

• Proton + Neutron

What is the charge of a neutron?

• Variable

• Neutral

• Negative

• Positive

How many protons does this isotope of titanium have?

• 48

• 22

• 26

• 70

Tags

NGSS.MS-PS1-1

A neutral atom of the isotope ²⁶₁₂Mg would consist of

• 12 protons, 26 neutrons

• 26 protons, 12 neutrons

• 26 protons, 14 neutrons

• 12 protons, 14 neutrons

Tags

NGSS.MS-PS1-1