positively charged particle

• proton

• nuetron

• electron

no charge

• proton

• nuetron

• electron

negatively charged particle

• electron

• proton

• nuetron

which particle changes the identity of an element

• proton

• nuetron

• electron

represents the number of protons that an element has

• atomic number

• atomic mass

• charge

the number of protons plus neutrons

• mass number

• atomic number

• charge

where can I find the atomic mass on the periodic table? mass number?

• atomic mass --> blue number at the top

• mass number-->red number at the bottom, rounded to a whole

• atomic mass-->-->red number at the bottom, rounded to a whole

• mass number--> blue number at the top

using your periodic table how many protons does lithium have?

• 3

• 7

• 10

using the periodic table how many protons does oxygen have?

• 8

• 16

• 24

using the periodic table decide how many neutrons bismuth has

• 83

• 126

• 209