Unit 5 Flashcards
Vertical columns on the periodic table are called
Groups/family
In the table were is the most active METALS
The first row is the most reactive
Where is the Halogen family
Column 17
Where is the most reactive nonmetals
Colum 17
What do you call the horizontals rows
Series/periods
Is corrosion a chemical or physical change
Chemical
Kool-aid dissolving in water
Physical
Production of bubbles with a color change
Chemical
Rubbing alcohol evaporates
Physical
Crushing a pop can
Physical
How are similar elements arranged in the periodic table
Vertical columns
Name 2 properties of nonmetal
Brittle,dull
Wood burning in a fireplace
Chemical
A glass of milk becomes sour
Chemical
Mold “grows” on cheese
Chemical
How can you tell if elements belong to the same group
Same rows
Which is the most reactive family of nonmetals elements
Halogens
The melting points of the metals in the lithium family decrease going down the family. The reason is that going down the family…
Less reactive attracts decrease
The repetition of similar properties at regular intervals when elements are arranged by atomic number is known as what law
Periodiclar law
What determines the properties of an atom of a specific element
Atomic electron
Tomato juice is made form ripe tomatoes
Physical
A pencil is sharpened
Physical
The flashbulb on a camera flashes
Chemical
Road frictions wears away the trend on a fire after driving it 60,000 miles?
Physical
How can a scientist distinguish change between Mercury and sulfur
Physical proportion
Gas is brown in color
Physical
The more dense than air
Physical
It forms CO2 when glucose is burned
Chemical
It kills germs
Chemical
It can dissolve in water
Physical
Iron is silvery
Physical
Iron becomes red after it is exposed to oxygen
Chemical
A substance that is hard,well, is hard and malleable is best classified as
Metal
Properties like color odor density and melting point are classified as
Physical
The metal chosen to replace copper in 1982 is
Zinc
If a material flatten without shattering when tapped with a hammer it is said to be
Malleable
Name 2 characteristics of a metal
Conducts electricity,luster
The property that allows metals to be drawn into a wire
Ductility
Which substance that lose thier outer electrons easliy
Metals
Which in the table contains the very unreactive elements
Noble gases
The modern periodic table classifies elements according to
Atomic number
