Metals make up about how much of the periodic table?
What is three-fourths
100
How many nonmetals are there?
What is 17
100
How many metalliods are there?
What is seven
100
Which one is smaller a cation or an anion?
What is cation
100
What group of elements on the periodic table are very stable and don't usually reactive with other elements?
What is noble gases
200
Which of the following is an akaline earth metal?
Cu, K, Mg, or H
What is Mg
200
True or false. Noble gases are highly reactive.
What is false
200
True or False. Silicon is a metalloid.
What is true
200
True or false. In a period atomic size increases from right to left.
What is true
200
Elements that have eight electrons in the outermost shell are the most stable. What rule is this called?
What is octet rule
300
True of False. Akali metals are located in group 1A.
What is true
300
Using their atomic number, put these nonmetals in order from greatest to least.
F, Xe, P.
What is F, P, Xe.
300
The metalloids occur in a ____-____ arrangement on the periodic table.
What is stair-shaped
300
The energy required to remove an electron from an atom is called what?
What is ionization energy
300
True or False. Period numbers on the periodic table tell the number of valence electrons in an element.
What is false
400
What property makes metal able to be made into different shapes?
What is malleablity
400
Halogens react with which metal the most?
What is alkali metals
400
The metalloids occur in a ____-____ arrangement on the periodic table.
What is stair-shaped
400
What element has the highest electronegativity? Which element has the lowest electronegativity?
What is Fluorine; Cesium
400
What block is helium's valence electrons located in?
What is s-block
500
What is the third most abundant element? And what type of metal is it?
What is Aluminum; Transition metal
500
Halogens, nonmetals in group 7A, usually become anions or cations?
What is anions
500
What is the term for this definition? A material that can conduct electricity under some conditions, but not all.
What is semiconductor
500
Which one of these are gases in their natural state?
K, Kr, Br, Rg
What is Krypton
500
Without using the periodic table, Calcium has 2 valence electrons, and those electrons are located in the fourth subshell. What group and period are is calcium located in?