Atomic Structure & the Periodic Table

Question 1

How many neutrons are in an atom of Chlorine?

Accepted Answer

18

Question 2

Which of the following correctly models an element of Carbon?

Accepted Answer

B

Question 3

Which of the following has chemical properties most like Fluorine?

Accepted Answer

Chlorine (Cl)

Question 4

How many electrons does an element with an atomic number of 19 and an atomic mass of 39 have?

Accepted Answer

19

Question 5

What is this model of the atom called?

Accepted Answer

Plum Pudding Model

Question 6

Preview Question: Who is the father of the periodic table?

Accepted Answer

Mendeleev

Question 7

Who is the scientist who discovered the mass of the electron using the Oil Drop Experiment?

Accepted Answer

Robert Millikan

Question 8

Preview Question: Elements that are in the same period have the same number of ________________.

Accepted Answer

Energy Levels

Question 9

What did JJ Thompson's work contribute to the atom?

Accepted Answer

Electrons

Question 10

Inside the nucleus of an atom are ________________________.

Accepted Answer

Protons and Neutrons

Question 11

Preview Question: What determines an element's chemical properties?

Accepted Answer

# of valence (outer) electrons

Question 12

What are the basic building blocks of matter?

Accepted Answer

Atoms

Question 13

Which scientist thought that all matter was continuous?

Accepted Answer

Aristotle

Question 14

Preview: How many neutrons does the element in group 1, period 2 contain?

Accepted Answer

4

Question 15

What is the electrical charge of a stable or neutral atom?

Accepted Answer

No Charge

Question 16

Which of the following is least likely to react with other elements?

Accepted Answer

An element with 8 valence (outer) electrons

Question 17

How many electrons are in a neutral atom of Oxygen?

Accepted Answer

8

Question 18

What is the compound formed of potassium+1 and sulfur-2?

Accepted Answer

K2S

Question 19

Who's experiment led to the discovery of the nucleus?

Accepted Answer

Rutherford

Question 20

Which element shares similar chemical properties as Germanium (Ge) and has fewer neutrons?

Accepted Answer

Silicon (Si)

Question 21

What can you predict about an element based on where it is on the periodic table?

Accepted Answer

Both chemical and physical properties.

Question 22

Who is the scientist who used the Gold Foil experiment to discover the nucleus?

Accepted Answer

Ernest Rutherford

Question 23

How many electrons does an atom of Silicon contain?

Accepted Answer

14

Question 24

Which of the following identifies this as a Helium atom?

Accepted Answer

2 Protons

Question 25

Which of the following elements has similar chemical properties to Oxygen (O)?

Accepted Answer

Sulfur

Question 26

What scientist wrote the Atomic Theory?

Accepted Answer

John Dalton

Question 27

Why are atoms neutral?

Accepted Answer

Same number of protons and electrons.

Question 28

Which subatomic structure has the least mass?

Accepted Answer

Electrons

Question 29

Lithium has an oxidation number/charge of...

Accepted Answer

+1

Question 30

If an atom has a mass of 80 and an atomic number of 35, how many neutrons does it have?

Accepted Answer

45

Question 31

Preview: Where on the periodic table are the elements that are brittle and poor conductors of heat?

Accepted Answer

Right Side

Question 32

Which subatomic particle(s) have a positive (+) charge?

Accepted Answer

Protons

Question 33

The mass of an atom is mostly made up of:

Accepted Answer

Protons and Neutrons

Question 34

What are the 3 subatomic particles?

Accepted Answer

Protons, Neutrons, and Electrons

Question 35

The columns within a periodic table are called ________________.

Accepted Answer

Groups

Question 36

Which scientist was the first to use the word "atom"?

Accepted Answer

Democritus

Atomic Structure & the Periodic Table

Questions 36

Atomic Structure & the Periodic Table

Questions 36