The elements in group 1 are known as __?
What are alkali metals?
The mass number of an element shows __.
What is protons and neutrons?
I am a noble gas with 2 electrons in my outer energy level.
Who is Helium?
The ability to be hammered into sheets is known as ___.
What is malleability?
The horizontal rows of elements in the periodic table are called __________.
What are periods?
What are the elements in group 2 known as and how many electrons are in the outer energy level?
What is alkaline earth and two electrons?
The atomic number of an element shows ___.
What is the number of protons or electrons?
I have the smallest mass of the elements in the most reactive nonmetal group.
Who is Fluorine?
Can be drawn into wires
What is ductile?
Vertical columns of the periodic table are called this.
What are groups?
These metals can use the inner shell before using the outer shell to bond.
What are the transition metals?
This metal is liquid at room temperature. And this nonmetal is at room temperature.
What is mercury? What is bromine?
I am a metalloid with 71 neutrons.
Who is Antimony?
Elements that have both properties of nonmetals and metals.
What are metalloids (or semiconductors)?
Elements in Group 2 like to form this type of charge. (sign and number)
What are +2?
These are the elements in group 7A or 17 called and this is how many electrons are in the outer energy level.
What are halogens and 7 electrons?
These are the three types of elements.
What are metals, nonmetals, and metalloids (semiconductors).
I am the only nonmetal in Group 14.
Who is carbon?
These are atoms that have gained or lost one or more electrons and have a negative or positive charge.
What is an ion?
Who first arranged the periodic table according to increasing mass number?
Who is Dmitri Mendeleev?
These are the elements in group 8A or 18 and this is why they are considered relatively inert?
What are noble gases and full outer energy levels?
Elements #57-#71 are known as ___ and elements #89-#103 are known as ____.
What are lanthanides? What are actinides?
I am a transition metal with 26 neutrons.
Who is Titanium?
These are negative ions.
What is an anion?
Elements in Group 15 like to form this type of charge. (sign and number)
What is -3?