General Flashcards
(21 cards)
What is an atom?
A small, subatomic particle that makes up all matter
What are isotopes?
Atoms that have the same number of protons but different number of neutrons
What are ionic bonds?
An element that has charges and is usually composed of a metal and nonmetal
The vertical columns in the periodic table is called what?
Groups
The horizontal rows in the periodic table are called what?
Periods
What is the symbol for protons?
P+
What is the symbol for neutrons?
Nº
What is the symbol for electrons?
e-
What is the relative mass of a proton?
1.000 amu
What is the relative mass of a neutron?
1.000 amu
What is the relative mass of an electron?
0.005 amu
Where are protons & neutrons located in the atom?
Nucleus
Where are electrons located in the atom?
Outer valence shells/electron shells
What is the difference between a covalent vs an ionic bond?
Covalent bonds are when atoms of various elements share electrons. Ionic bonds have charges and do not share electrons.
What is the formula for density?
d=m/v
Which subatomic particle(s) determines the atom’s atomic number?
Protons
Which subatomic particle(s) determines the atom’s mass number?
Protons & neutrons
Which subatomic particle(s) determines the atom’s behavior in bonding with other atoms?
Electrons
Which subatomic particle(s) determines the atom’s location in the periodic table as a specific element?
Protons & electrons
Which subatomic particle(s) determines the atom’s radioactivity?
Electrons
How do you find the number of neutrons (in a neutral atom)?
Will be the same as the # of protons
