The elements in group 1 are known as __?
What are alkali metals?
The mass number of an element shows __.
What is protons and neutrons? (protons + neutrons=mass number) (Mass-atomic number=neutrons)
Element with 12 protons and 12 electrons
What is carbon?
The ability to be hammered into sheets is known as ___.
What is malleability?
force that is responsible for subatomic particles changing?
What is weak force?
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? Atomic number=Protons=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?
___ are usually gases or brittle solids at room temperature.
What are nonmetals?
Called periods on the periodic table.
What are horizontal rows?
Which metal is liquid at room temperature?
What is mercury?
electronegativity, ionization energy, electron affinity,atomic radius
What are periodic table trends?
Elements that have both properties of nonmetals and metals.
What are metalloids?
Two atoms sharing electrons are this type of bond.
What is covalent bond?
Columns (up and down) of the periodic table
What are families or groups?
Primary element in organic chemistry
What is Carbon?
I am a very unstable, radioactive element in the group of the most reactive metals.
Who is Francium?
The type of bonding that occurs when there are positively-charged ions in a sea of electrons.
What is metallic bonding?
force that holds nucleus together?
What is strong nuclear force?
What are the elements in group 8A or 18 called and why are they considered relatively unreactive?
What are noble gases and full outer energy levels?
Elements #57-#70 are known as ___ and elements #89-#102 are known as ____.
What are lanthanides? What are actinides?
acronym APE MAN helps identify what information for all elements?
What is atomic mass, atomic number, protons, electrons, and neutrons
When nonmetals combine with metals, ___ bonds form.
What is ionic?
Atomic mass is usually a decimal number because of these.
What are isotopes?