Unit 3 Test

What is the atomic number of Neon, Ne?

• 10
• 20.1798
• 10.1798
• 7

Tags

NGSS.HS-PS1-1

Which of the following statements regarding subatomic particles is incorrect?

• Protons are positively charged particles and neutrons have no charge.
• The relative mass of the proton, electron and neutron the same.
• In a neutral atom the number of protons equals the number of electrons.
• Isotopes of an element have the same number of protons but a different number of neutrons.

Tags

NGSS.HS-PS1-8

Isotopes of the same element have the same number of 

• protons
• neutrons
• electrons
• not enough information

Which of the following particle pairs has approximately the same mass?

• protons and neutrons
• protons and electrons
• neutrons and electrons
• protons, neutrons and electrons

A carbon isotope consists of 6 protons, 6 electrons and 8 neutrons.  What is the mass number for this isotope?

• 12
• 14
• 6
• 8

Tags

NGSS.MS-PS1-1

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Tags

NGSS.HS-PS1-8

How many neutrons does the isotope below have?     ⁸⁹ ₃₆Kr

• 53
• 36
• 89
• 125

Tags

NGSS.HS-PS1-8

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.HS-PS1-8

Which scientist called his model the Nuclear Model?

• Ernest Rutherford

• John Dalton

• J.J. Thomson

• Niels Bohr

Which scientist called his model the Plum Pudding Model?

• John Dalton

• Ernest Rutherford

• J.J. Thomson

• Erwin Schrodinger