Element Symbols
This is the lightest element of the Noble Gases
What is He?
This first chemical Family, Group 1, consists of silvery white, very reactive metals that are soft enough to cut with a plastic knife. Includes the elements Lithium, Sodium, and Potassium
What are the Alkali Metals?
This is the lightest element with only one valence electron
What is Hydrogen?
The atom's center
What is the nucleus?
H2O
What is water?
This element has the symbol Au
What is gold?
This Family of gases is considered "inert." Each atom, except Helium, has 8 electrons in its outer energy level, neither gaining or losing any electrons. Used in balloons and electric signs.
What are the Noble Gases?
The Alkaline Earth Metals, such as Magnesium and Calcium, have this many valence electrons
What is 2?
The Atomic Number refers to the number of these positively-charged particles found in the nucleus
What are protons?
NaCl
What is Sodium Chloride?
The symbol of the element with 13 protons
What is Al?
This Family has four(4) valence electrons, thus it is Group IV
What is the Carbon Group?
The Noble gas Neon has this many valence electrons?
What is 8?
The Atomic Mass of an atom equals number of protons + ________________?
What are neutrons?
CO2
What is carbon dioxide?
The symbols of these two elements make up common table salt
What is Na and Cl?
75% of the elements on the periodic table are this type of substance - they are shiny, good conductors, used in jewelry and electronics. Can be hammered into shape without breaking and be stretched into wire.
What are metals?
This is the most reactive element with 7 valence electrons in the Halogen Group just above Chlorine
What is Fluorine?
Sulfur has this many total electrons
What is 16?
C6H12O2
What is Glucose, Fructose, or sugar?
The name and symbol for the heaviest naturally-occurring element; it's radioactive and used in nuclear weapons
What is Uranium (U)?
These elements are located between the metals and nonmetals. They have properties of both being good conductors, shiny like metals, but brittle. Examples are B, Si, Ge, As, Sb, Te
What are metalloids?
This type of bond between atoms involves sharing valence electrons
What is a covalent bond?
This element has a mass of 107.9, having 47 protons and 61 neutrons
What is Silver?
C3H8 (a gas that heats the school)
What is propane?