Atoms
What subatomic particle has a positive charge?
Proton
What is the symbol for Helium?
He
Are Cations positive or negative?
Positive
What is the mass number of an atom with 23 protons and 28 neutrons?
51
In isotopic notation, is the mass number the number on the top or the bottom of the symbol?
Mass number is on the top
What subatomic particle has a negative charge?
Electron
What is the atomic number for Aluminum?
13
Are anions positive or negative?
Negative
What is the mass number of an element with 104 protons and 157 neutrons?
261
In isotopic notation, is the atomic number on the top or the bottom of the symbol?
Atomic number is on the bottom.
What are the two subatomic particles located in the nucleus of the atom?
protons and neutrons
What is the atomic mass for Cobalt?
58.93
is Mg3+ a cation or an anion?
Cation
What two subatomic particles do I add together to find my mass number?
Protons and Neutrons
In an isotope, what is the only subatomic particle that changes its amount?
The neutrons
Do neutrons have a charge? (yes or no)
No
What is the symbol for gold?
Au
Is Cd5- a cation or an anion?
Anion
If I know my mass number is 112 and I have 48 protons, how many neutrons does this atom have?
64
Write Carbon-14 in Isotopic Notation.
C614
What are the three subatomic particles located in an atom?
Protons, Neutrons, and Electrons.
The periodic table is organized from increasing ______?
atomic number/number of protons
How many total electros are there in Ga4-?
35 electrons
What element has a mass number of 55 and 30 neutrons?
Manganese (Mn)
Write this in isotopic notation: Calcium with a mass number of 42.
Ca2042