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