What the 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.
Salt dissolving in water
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
Silver Tarnishing
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
Intensive or Extensive property:
Length
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 a part of the Alkali metals, despite being in the same group?
Hydrogen
True or False:
Toxicity is a 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