6th Grade Atomic History and Atomic Structure

Positive Charge (+)

• Proton

• Neutron

• Electron

• Quark

Neutral or no charge

• Proton

• Neutron

• Electron

• Quark

Negative Charge (-)

• Proton

• Neutron

• Electron

• Quark

Located in the center of the atom. Consists Of protons and neutrons; Electrons surround it.

• Proton

• Neutron

• Electron

• Nucleus

What is the mass of a neutron?

• less than 1 amu
• 1 amu
• more than 1 amu
• 1 gram

What subatomic particles would you find in the nucleus of an atom?

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

Tags

NGSS.MS-PS1-1

Compare a proton to an electron.

• A proton is positively charged and an electron is negatively charged. A proton is found in the nucleus and an electron is found outside the nucleus. A proton has a mass of 1 AU and an electron has nearly no mass.

• A proton is positively charged and an electron is has a neutral charge. A proton is found in the nucleus and an electron is found outside the nucleus. A proton has a mass of 1 AU and an electron has nearly no mass.

• A proton is positively charged and an electron is has a neutral charge. A proton is found in the nucleus and an electron is found outside the nucleus. A proton has a mass of 1 AU and an electron also has a mass of 1 AU.

• A proton is negatively charged and an electron is has a neutral charge. A proton is found in the nucleus and an electron is found outside the nucleus. A proton has a mass of 1 AU and an electron also has a mass of 1 AU.

How does electromagnetic force hold an atom together?

• The negatively charged electrons are attracted to the positively charged nucleus, which holds an atom together.

• The positively charged electrons are attracted to the negatively charged nucleus, which holds an atom together.

• The neutral charge of the electrons are attracted to the negatively charged nucleus, which holds an atom together.

• The negatively charged electrons are attracted to the neutral charge of the nucleus, which holds an atom together.

Which model of the atom proposed that atoms were positive spheres with negative electrons in them?

• Heliocentric Model
• Solid Sphere Model
• Plum Pudding Model
• Planetary Model

Who was the Greek philosopher who called the smallest particle of matter as "atom"?

• Democritus
• Aristotle
• J.J Thompson
• Epididymis