Atoms, Elements & Molecules

Question 1

List the following in order from smallest to largest
- ant
- atom
- cell
-dust particle
- ping pong ball

Answer 1

atom
cell
dust particle
ant
ping pong ball

Question 2

Copper (Cu)
Silver (Ag)
Gold (Au)
are three elements group together. They are also called coinage metals. Why do you think that is?

Answer 2

They are used for coins;
metals are not too heavy;
they do not tarnish easily;
they are easy to mold or print;
easy to find

Question 3

Cu is the chemical symbol for the element _________

Answer 3

Copper

Question 4

Li is the chemical symbol for the element _________

Answer 4

Lithium

Question 5

Ni is the chemical symbol for the element _________

Answer 5

Nickel

Question 6

O is the chemical symbol for the element _________

Answer 6

Oxygen

Question 7

Pd is the chemical symbol for the element _________

Answer 7

Palladium

Question 8

Po on the periodic table is also known as

Answer 8

Polonium

Question 9

Pt is the chemical symbol for the element _________

Answer 9

Platinum

Question 10

S is the chemical symbol for the element _________

Answer 10

Sulfur

Question 11

Zn is the chemical symbol for the element _________

Answer 11

Zinc

Question 12

Look closely at the location of each of these elements on the periodic table. Make a prediction: which elements have similar properties to each other and why?

Answer 12

Ni, Pd and Pt are in the same column or group on the periodic table so they will have similar properties to each other. O, S, and Po are also three elements in the same column or group on the periodic table, so they will likely have similar properties to each other though different from Ni, Pd, and Pt.

Question 13

Draw the chemical symbol for Iron. What does the number on top mean

Answer 13

The number on top of the chemical symbol is the atomic number; the number of protons and number of electrons

Question 14

What does the number on the bottom of a chemical symbol mean

Answer 14

Atomic mass

Question 15

It is the basic unit of an element

Answer 15

atom

Question 16

an atom is made of p_________, n_______ and e__________

Answer 16

protons, neutrons and electrons

Question 17

Two or more atoms bonded together.

Answer 17

molecule

Question 18

part of the atom that are positively charged located at the center of the atom

Answer 18

protons

Question 19

part of the atom that don’t have a charge located at the center of the atom

Answer 19

neutrons

Question 20

all matter is made up of atoms - T or F

Answer 20

True

Question 21

part of the atom that are negatively charged and orbits the nucleus

Answer 21

electron

Question 22

Protons and neutrons that clump together at the center of the atom is called a

Answer 22

nucleus

Question 23

We can use a chart called the ___________________ to find information about all
the elements.

Answer 23

periodic table

Question 24

Pure substances made of only one type of atom.

Answer 24

Element

Question 25

An abbreviation for the name of an element on the periodic table.

Answer 25

Atomic Symbol

Question 26

Elements that are good conductors of electricity and thermal energy and are often solid at room temperature.

Answer 26

Metals

Question 27

The pattern in which elements are arranged on the periodic table helps scientists categorize them based on properties and reactivity. True or False

Answer 27

True

Question 28

Where are protons and neutrons located in an atom?

Answer 28

In the center

Question 29

Give three examples of properties of elements.

Question 30

Which two subatomic particles make up the nucleus of an atom?

Answer 30

protons and neutrons

Question 31

Draw a model of an atom and label the 3 different subatomic particles

Answer 31

Draw it

Question 32

What is a PURE substance?

Answer 32

made up of only one atom; Pure substance are also known as element