General Chemistry
What is Chemistry the study of?
Matter
What type of a charge does a proton have?
Positive
What does the periodic table consist of?
elements
How many letters do most of the chemical symbols contain?
1 or 2
Which group is used in fireworks and flares?
Alkaline earth metals
How many electrons are in the outermost shell of sodium?
1
What is matter?
Anything that has mass or volume
A neutral atom has a charge of what? (*hint- looking for a number)
0
How many groups are on the periodic table?
18
What does the number in the top left corner mean?
# of protons
What does the zig-zag line represent on the table?
Separates metals from non-metals
True
what is the smallest possible unit into which matter can be divided?
Atoms
True or false: Atoms of a given element can have different mass numbers?
true
How many periods are on the periodic table?
7
Which element has 83 as the atomic number?
Bismuth
Which group is colorless, tasteless, and odorless?
Noble Gases
Name one metal that loses 2 electrons when making a bond.
Any Alkaline Earth Element or metal with a 2+ change on the table.
What are the three subatomic particles in an atom?
Proton, neutron, electron
protons and electrons
Which group is located all the way to the left on the periodic table?
alkali metals
True or False: The atomic masses on the Periodic Table always increase.
False (look at Iodine & Tellurium)
Which group contains all nonmetals and poisons?
Halogens
Gain
What is the nucleus composed of?
Protons and neutrons
what is the difference between the mass number and the atomic number?
mass number- the sum of the protons and neutrons
Atomic number- # of protons
*see student answer*
Give the chemical symbol, #protons, #neutrons, #electrons for an ION of Magnesium.
Mg, 12p, 12n, 10e,
Which group is known for it's reactivity with water?
Alkali Metals
Fill in the blank. ALL metals _______ electrons when creating ionic bonds.
Lose