Element
What element has an atomic mass of 69.723
What is Gallium
The elements touching the "staircase" on the periodic table.
What are Metalloids
Found in the nucleus of an atom
What are Protons + neutrons
The nubmer of electrons that take part in reactions (available to bond)
What are valence electrons
True or False: The periodic table contains only elements found in nature.
False. It also contains man-made elements (above 92)
This number stands for the number of protons.
What is the atomic number
Take up most of the Periodic table
what are metals
Neutrons and protons make up the nucleus and equal this
What is the atomic mass?
Oxygen has _ number of valance electrons.
What is 6 (six)?
The number of periods in a periodic table
what is 7
The column going up and down of the periodic table
What is a group
Theseelements are malleable and ductile
what are metals
Determines the atomic number
What are protons?
How many valence electrons does Phosphorus Have?
what is 5
How many valence electrons does Krypton have?
what is 8
The element is found in Group 11 period 4
what is Copper
This element has 8 protons and is needed for life.
What is oxygen?
The only element with no neutrons
What is hydrogen?
Elements in Group 1 have this many valence electrons.
What is 1?
Chlorine, Bromine, and Iodine have the same chemical properties because they this in common
what are valence electrons
These elements do not conduct heat or electricity.
What are non-metals?
This interaction holds the atom together
What is a positive charge of protons attracted to the negative charge of the electrons?
Hanging with the wrong crowd: Boron, Iron, Hydrogen, Argon.
What is Iron? (a metal)
These elements have a full (complete) valence shell.
What are Noble Gasses (Group 18)?
location of Chlorine
What is group 17, period 3?