Element
What element has an atomic mass of 69.723
What is Gallium
C6H1206 is a Compound or an Element
Compound
Found in the nucleus of an atom.
Protons + neutrons
How many electrons does carbon have?
6 electrons
True or False: The periodic table contains only elements found in nature.
False
This number stands for the number of protons.
What is the atomic number
The majority of the periodic table is...
metals
Neutrons and protons make up the nucleus and equal _.
What is the atomic mass?
Oxygen has _ number of electrons.
8 electrons
How many groups are in the periodic table?
18
What element has an atomic # of 74
Tungsten
True or False- O2 is a Compound
False- element
Determines the atomic number
What are protons?
How many neutrons does Phosphorus have?
15 neutrons
How many elements on the periodic table
118 known elements
What is the first element in column 17?
Fluorine
This element has 8 protons and 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 are in the same
group
These elements do not conduct heat or electricity.
What are non-metals?
This holds together the atom.
What is a positive charge of protons attracted to the negative charge of the electrons?
Which does not fit? Carbon, Nitrogen, Zinc, Sulfur
Zinc
What is group 18 on the periodic table called?
Noble Gasses (Group 18)
Group number and atomic number that Copper (Cu) is in.
group 11, and 29