Elements and Compounds (TEK 6.5A + 8.5)

Question 1

The negatively charged particles in an atom are the...

Accepted Answer

electrons

Question 2

What do the periods on the periodic table tell you?

Accepted Answer

energy levels

Question 3

Non-metals are located where on the periodic table of elements?

Accepted Answer

right

Question 4

What are the correct charges for each subatomic particle?

Accepted Answer

proton +, electron -, neutron 0

Question 5

How many protons does platinum have? And where are they located?

Accepted Answer

78 in the nucleus

Question 6

When looking at a chemical symbol, how can you tell elements apart from compounds?

Accepted Answer

Elements have only one capital letter

Question 7

Which are examples of a pure substance?

Accepted Answer

A tank filled with carbon dioxide (CO2), A glass filled with water (H2O), A pile of table salt (NaCl), A balloon filled with Helium (He)

Question 8

Which element makes up the largest amount of the solid earth?

Accepted Answer

Oxygen

Question 9

An atom has 25 protons and 25 electrons what is the charge of the atoms nucleus?

Accepted Answer

+25

Question 10

A new compound has just been created. Its formula is: C17H2ON4NaO9P How many different elements make up this compound?

Accepted Answer

6

Question 11

What is matter?

Accepted Answer

Anything that has mass and takes up space

Question 12

How many atoms of hydrogen are in the following formula 3Fe2O3(H2O)2 ?

Accepted Answer

12

Question 13

A substance that is made up of just one type of atom is called a(n)?

Accepted Answer

element

Question 14

What does this image represent?

Accepted Answer

An element

Question 15

What are the building blocks of all matter?

Accepted Answer

Atoms

Question 16

What subatomic particle(s) defines the identity of this oxygen atom?

Accepted Answer

protons

Question 17

A substance that is malleable, has luster and is a good conductor is a?

Accepted Answer

metal

Question 18

How many different elements are in the compound Copper Sulfate (CuSO4)?

Accepted Answer

3

Question 19

How can you determine the mass of an atom?

Accepted Answer

protons + neutrons

Question 20

What is the mass number of potassium (K) atom that has 20 neutrons?

Accepted Answer

39

Question 21

What two elements make up the compound Carbon Dioxide?

Accepted Answer

Carbon and Oxygen

Question 22

.On the periodic table, COPPER is represented by _____________________________.

Accepted Answer

The chemical symbol Cu

Question 23

How many electrons can fit on the second energy level?

Accepted Answer

8

Question 24

How many electrons can fit on the 1st energy shell?

Accepted Answer

2

Question 25

An object that has luster, is brittle, and is a semi-conductor it is a?

Accepted Answer

metalloid

Question 26

An atom has 36 protons, 36 electrons and a mass # of 84. How many neutrons does the atom have?

Accepted Answer

48

Question 27

Which is an example of an element?

Accepted Answer

A balloon filled with Helium (He)

Question 28

Where are the metals located on the periodic table?

Accepted Answer

left

Question 29

Identify the chemical symbol of the pictured element.

Accepted Answer

Fe

Question 30

What subatomic particle(s) are in the nucleus?

Accepted Answer

protons and neutrons

Question 31

What is a compound?

Accepted Answer

A substance made of more than one atom

Question 32

The mass of an atom is found in what area?

Accepted Answer

nucleus

Question 33

Which are examples of a compound?

Accepted Answer

A glass filled with water (H2O), A tank filled with carbon dioxide (CO2), A pile of table salt (NaCl)

Question 34

Which two elements on the periodic table are in the same period?

Accepted Answer

Sn and Rb

Question 35

Which particle(s) would you find surrounding the nucleus?

Accepted Answer

electrons

Question 36

Elements are represented by symbols that can be found on the __________________________

Accepted Answer

Periodic Table of Elements

Question 37

Which atom has 47 protons?

Accepted Answer

silver

Question 38

What is an element?

Accepted Answer

A pure substance made of only one kind of atom

Question 39

Use the periodic table to find the chemical symbol for SILVER.

Accepted Answer

Ag

Elements and Compounds (TEK 6.5A + 8.5)

Questions 39

Elements and Compounds (TEK 6.5A + 8.5)

Questions 39