atomic structure
this tiny particle has a positive charge
what is a proton?
This is the first element on the periodic table.
what is hydrogen
These elements are shiny and conduct electricity well.
what are metals?
Group 1 elements are known as this family.
what are alkali metal?
This element is needed for breathing.
what is oxygen
this particle has no charge
what is an electron?
Vertical columns on the periodic table are called this
what are groups
These elements are dull and poor conductors.
what are non metals
Group 18 elements are known as this family.
what are noble gases
This element has the chemical symbol Fe.
what is iron
tells you how much protons are in an element
what is atomic number?
Horizontal rows on the periodic table are called this.
what are periods
These elements have properties of both metals and nonmetals.
what are metalloids?
These elements in Group 17 are very reactive nonmetals.
what are halogens
This is the only metal that is liquid at room temperature.
what is Mercury?
Protons and neutrons are found in this part of the atom
what is the nucleus?
Elements in the same group have similar ______.
what are properties?
Most metals are found on this side of the periodic table.
what is the left side
This noble gas is commonly used in balloons.
what is helium?
This element is the main part of diamonds.
what is carbon
This is the maximum number of electrons that can fit in the first energy level
what is 2?
The periodic table is arranged by increasing ______.
This “stair-step” line separates metals and nonmetals.
what is the metalloid line
Alkali metals react strongly with this substance.
What is water?
This element has the symbol Na and is found in table salt.
what is sodium