periodic table
Which side of the periodic table are metals located?
Left
What is the charge of an atom when it gains an electron?
negative
How many protons does C14 have?
6 protons
What is matter?
Anything that takes up space (has mass)
What are the 3 subatomic particles?
proton, neutron, electron
Is Oxygen a metal or nonmetal?
Nonmetal
What is the term used for a positively charged atom?
cation
How many neutrons does Li9 have?
6 neutrons
A pure substance that cannot be separated into simpler substance by physical or chemical means.
element
Which subatomic particles are found in the nucleus?
proton, neutron
Mercury and Bromine
what is the oxidation number of oxygen?
O2-
How many electron does C14 have?
6 electrons
A combination of two or more pure substances that are not chemically combined. They can be separated physically
Mixture
How do you find the number of neutrons in an atom?
atomic mass - atomic number = neutrons
Which family/group contains all gases?
Noble gases (group 8)
Draw the electron dot diagram for Calcium
2 valence electrons
An isotope has the same amount of _________ and a different amount of ______________.
protons, neutrons
Salt is an example of a ___________.
compound
what is the atomic number of Sodium?
11
Which side of the periodic table has elements that are shiny, ductile and malleable?
Left
What is the oxidation number for Silicon?
Si4+/-
What is the mass number of Ca25?
25
which phase of matter has the weakest attractive force?
gas
How many valence electrons does Sulfur have?
6