Metals and Nonmetals
These elements are usually dull, brittle, and poor conductors of electricity.
What is a nonmetal?
What is the total number of elements currently listed on the periodic table?
What is 118?
These particles have a negative charge
What are electrons?
Electrons are found in these areas around the nucleus.
What are shells or energy levels?
This is the name of Group 17, known for being very reactive.
What are halogens?
This type of element has properties of both metals and nonmetals.
What is a metalloid.
This numer tells you how many protons an element has
What is the atomic number?
These positively charged partilcles are found in the nucleus.
What are protons?
This is the maximum number of electrons that can go in the first shell.
What is 2?
This group, group 18, is made of gases that do not usually react with anything.
What are noble gases.
This common type of metal is used in wires because it conducts electricity very well.
What is copper?
He created the first version of the periodic table.
Who is Dimitri Mendeleev?
These are neutral particles found in the nucleus.
What are neturons?
The second electron shell can hold up to this many electrons
What is 8?
This noble gas is used in balloons because its lighter than air and doesn't catch on fire.
What is helium?
This type of element is usually shiny, a good conductor, and can be hammered into shapes.
What is a metal?
Elements in the same vertical column of the periodic table are called this.
What is a group or family?
If an atom has 8 protons, it must have this many electrons to be neutral.
What is 8?
This rule explains why atoms want full outer shells.
What is the octet rule?
Flourine, CHlorine, and Iodine are part of this group.
What are halogens?
This property means a metal can be stretched into a wire.
What is ductility?
This is the name of the horizontal rows on the periodic table.
What are periods?
The number of protons plus the number of neutrons equals this.
What is the atomic mass (mass number)?
An atom is most stable when this shell is full.
What is the outer (valence) shell?
This is why noble gases don't react with other elements..
What is because their outer electron shells are full?