Classification of Matter
Is ice a element, compound, or mixture?
Compound
Which is bigger: Na or K
K
Period 2 element with 7 valence electrons.
Fluorine
This broad block of metallic elements spans Groups 3 through 12 in the central region of the periodic table.
Is salt dissolving in water a physical or chemical change?
Physical Change
True or false: You can not physically separate a mixture
FALSE
Which has a higher electronegativity: N or P
Nitrogen
Period 6, Group 7
Re
This family of extremely unreactive gases occupies the far right edge of the periodic table.
Noble Gases
Is silver tarnishing a physical or chemical change?
Chemical Change
True or false: Compounds are pure substances
TRUE
Which has high ionization energy: Sr or Ca?
Calcium
Period 4 element with 3 valence electrons.
Gallium
This group of reactive metallic elements occupies Group 2 of the periodic table.
Alkaline Earth Metals
Is length an intensive or extensive property?
Extensive
What term describes the following definition: non-uniform in composition and you can see the different parts
Heterogenous mixture
Which family is NOT included on electronegativity?
Noble Gases
Fill in the blanks: The charge of metals are _________ and the charge of nonmetals are ___________.
The charge of metals are positive and the charge of nonmetals are negative.
Which element is not included in the same column as the Alkali Metals?
Argon
Is toxicity a chemical or physical property?
Chemical property
Adding energy
Would an element that has a positive or negative charge have high electronegativity?
No electronegativity, period 3
Argon
Which of the following is NOT a metalloid: As, Si, Al, Po
Aluminum
Iron rusting in moist air
Chemical change