Atoms
The atomic number of an element tells me the number of this in the nucleus
What are Protons?
Nonmetals (also called gases) are found mostly on this side of the periodic table
What is the Right?
The element with 47 protons
What is Silver?
The only Noble Gas that does not have 8 valence electrons.
What is Helium?
The horizontal rows on the Periodic Table.
What are periods?
Material that can be molded, hammered, or rolled into sheets is considered to have this property
What is Malleable?
The Metalloid in period 4 with four valence electrons.
What is Germanium?
Are found on the outermost energy level of an atom and determines how reactive an atom is.
What valence electrons?
These two subatomic particles (found in the nucleus) are what makes up an atom's mass
What are Protons and Neutrons?
Number of groups in the periodic table
What is 18?
Name of the blue colored group of metals
What is Alkaline Earth Metals (group 2)
The element in period 4 and two valence electrons.
What is Calcium?
The first transition metal that was synthesized.
What is Technetium?
Na is the chemical symbol for this element
What is Sodium?
Name for the most reactive group of elements on the Periodic Table that have 7 valence electrons.
What are the Halogens (Group 7A)?
The element with 50 electrons and 69 neutrons
What is Tin?
The only nonmetal that exists as a liquid at room temperature
What is Bromine?
An atom with the same number of protons and different number of electrons is called this
What is an Ion?
When added together they make up the atomic mass of an element.
What are protons and neutrons?
Name 4 nonmetals
What is He, H, C, N, O, F, Ne, P, S, Cl, Ar, Se, Br, Kr, I, Xe, Rn, UUo (18 total)
A nonmetal with only one valence electron.
What is Hydrogen?
The number of electrons in the ion Br-1.
What is 36?