Honors Chemistry - Atomic Structure

Provide the number of protons, electrons, and neutrons for ¹⁹F^-

• p = 19, e = 20, n = 19
• p = 9, e = 9, n = 10
• p = 9, e = 10, n = 10
• p = 9, e = 8, n = 10

Tags

NGSS.MS-PS1-1

Which of the following is the contribution by Millikan to Atomic Theory?

• discovered the electron
• discovered the proton
• discovered the neutron
• charge of an electron

Predict the product when Uranium-238 undergoes alpha decay.

• ²³⁴₉₀Th
• ²³⁸₉₃Np
• ²³⁶₉₀Th
• ²³⁸₈₈Ra

Tags

NGSS.HS-PS1-8

Which of the following is name of the experiment and model by J. J. Thomson to Atomic Theory?

• canal ray; Nuclear Model
• cathode ray; Plum Pudding Model
• canal ray; Oil Drop Experiment
• cathode ray; Gold Foil Experiment

Provide the element located in Period 4 and Group IIIA (or called 3A or 13).  

• Sc
• Al
• Y
• Ga

Tags

NGSS.HS-PS1-1

Provide the number of protons, neutrons, and electrons in Molybdenum-86.  

• p = 86, n = 86, neutrons = 42
• p = 42, n = 42, e = 44
• p = 42, n = 44, e = 42
• p = 42, n = 42, e = 42

Tags

NGSS.HS-PS1-8

What is the contribution to Atomic Theory by Chadwick?

• discovered the neutron
• developed the mathematical formula for finding an electron
• discovered the electron
• discovered the nucleus of an atom

An element has a charge of 2+ with 20 protons.  Predict the number of protons and electrons.

• p = 20, e = 22
• p = 20, e = 18
• p = 20, e = 20
• p = 18, e = 20

Tags

NGSS.HS-PS1-1

What is the name of the Periodic Table family in which Argon is located?

• Alkali Metals
• Halogens
• Chalcogens
• Noble Gases

Tags

NGSS.HS-PS1-1

What is the name of the experiment and contribution to Atomic Theory by Rutherford?

• Plum Pudding Model; discovered the electron
• Planetary Model; discovered electrons travel in orbits
• Gold Foil Experiment; discovered atom had a nucleus
• Oil Drop Experiment; discovered charge on an electron

Tags

NGSS.HS-PS1-8