Ch 10 atoms Flashcards
(23 cards)
The nucleus has what charge
Positive
What is an atom
The smallest particle that an element can be divded into
The nucleus contains what
Protons and nuetrons
The nucleus contains most of the atoms what
Mass
Protons and neutrons are located where
Inside the nucleus
Protons have what charge
Positive
Protons and neutrons have a weight of what
1 amu
The number of protons is the same as what
The atomic number
What charge do neutrons have
None
Atomic weight-protons=
Neutrons
Electrons are located where
Outside the nucleus
Electrons have what charge
Negative
In most cases an atom will have the same number of protons as what
Electrons
What is the weight measurement for electrons
None
_______ electrons are located on the outer most energy level
Valence
The bottom number of a chemical on the periodic table is what
The amu
The top number is the what
Atomic number
The big letters are the what
Chemical symbol
The what is directly under the chymical symbol
The element name
protons+neutrons=
Amu
The first ring of electrons can hold
2 electrons
The second ring of electrons can hold
8 electrons
The third ring of electrons can hold up to
18 electrons
