Inside the atom

2. Rutherford discovered what part of the atom

• electron

• proton

• neutron

• nucleus

4. This atomic particle balances the charges from the protons to make the atom neutral

• proton

• electron

• neutron

• nucleus

5.These particles are found in the nucleus

• protons and electrons

• protons and neutrons

• nucleus and neutrons

• electrons and neutrons

6.What scientist is best known for his "Plum Pudding" model of the atom?

• J.J. Tomson

• Ernest Rutherford

• John Dalton

• Democritus

7.How many electrons does this oxygen atom have?

• 6

• 8

• 16

• 24

Tags

NGSS.MS-PS1-1

10.All matter is made of atoms

• true

• false

Tags

NGSS.MS-PS1-1

What do isotopes of an element have in common?

• number of neutrons & mass number

• atomic number and number of neutrons

• atomic number, number of protons and electrons

• number of protons, atomic number, and mass number

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

What quantities vary between isotopes of an element?

• protons, electrons, and atomic mass
• protons, electrons, and atomic number
• neutrons and electrons
• neutrons and atomic mass

Tags

NGSS.HS-PS1-8