Chemical Building Blocks

Question 1

True or False:

Matter is made of particles

Answer 1

True

Question 2

Define Matter

Answer 2

Anything that takes up space and has mass

Question 3

Order of parts of matter

Answer 3

Compound
Molecule
Element
Atom
Subatomic Particle

Question 4

3 physical properties of an iron nail

Answer 4

Pointy, flat top, ~4 inches long

Question 5

Chemical Property of Iron Nail

Answer 5

Rusty

Question 6

What do molecules of solid look like

Answer 6

Clumped together, bonded tightly

Question 7

Molecules of a liquid?

Answer 7

Loosely connected

Question 8

Molecules of a gas?

Answer 8

Not connected

Question 9

What does section A rep? (Osage change graph)

Answer 9

Solid

Kinetic

Question 10

What does section B rep? (Osage change graph)

Answer 10

Melting / Freezing point

Potential

Question 11

What does section C rep? (Osage change graph)

Answer 11

Liquid

Kinetic

Question 12

What does section D rep? (Osage change graph)

Answer 12

Boiling / Condensing point

Potential

Question 13

What does section E rep? (Osage change graph)

Answer 13

Gas

Kinetic

Question 14

Explain movement in molecules has heat is added / what is happening when substances are at melting points

Answer 14

Has heat increases, molecules jump more

Question 15

How are chemical / Physical changes similar?

Answer 15

Both changes in a substance

Question 16

How are Physical / Chemical changes different?

Answer 16

Chemical - Changes particles

Physical - changes appearance

Question 17

How do you draw an atom?

Answer 17

1. Find Protons and Neutrons, put in middle and circle

2. Do number of electrons on outer circle.. Remember the hotel!!!

Question 18

History of the atom?

Answer 18

First believed as earth, air, water, fire

Medeleev developed Periodic Table after rise of evidence of atoms (experiments)

Question 19

How do you find Valence Electrons?

Answer 19

Take 1s digit

Question 20

What element is mostly on the “staircase”? What are some properties?

Answer 20

Metalloids

• Solids can be dull or shiny
• Conduct heat and electricity better than no metals butt not as well as metals
• Ductile and malleable

Question 21

Where are Metals located? What are some characteristics?

Answer 21

Left of “staircase”

• Have Luster
• conductors of elec.
• high density
• high melting points
• ductile (wire)
• most are Malleable (thin sheets)

Question 22

Where are non metals located? What are some characteristics?

Answer 22

Right of “staircase”

• No luster
• do not heat or elec.
• brittle
• non malleable
• lower densities and lower melting points than metals

Question 23

Group 1 state of matter and chemical reactivity

Answer 23

(Alkali Metals)

• most active metals
• not pure naturally (bond with other elements)
• burst into flames when in water
• lose 1 electron when forming compounds

Question 24

Group 2 state of matter and chemical reactivity

Answer 24

(Alkaline Earth Metals)

• less reactive than alkali metals
• form white compounds
• used in fireworks
• lose 2 electrons when forming compound

Question 25

Group 17 state of matter and chemical reactivity

Answer 25

(Halogen)

• most chemically active nonmetals
• not found in nature, poisonous when purified
• deadly gases
• F, Cl, Br, I diatomic
• gain 1 electron when forming compounds

Question 26

Group 18 state of matter and chemical reactivity

Answer 26

(Noble Gases)

• due to full outer orbits, cannot form compounds
• stable
• few uses, lighting

Question 27

Air removed from marshmallow. Increases. Use the words PARTICLES and MATTER to describe what happened

Answer 27

Air particles are removed, so the matter of the marshmallow was left. Increased in size.