Science - Basic Atomic Structures Flashcards
Nucleus
Center of the Atom
what is responsible for having a positive charge of the atom
Protons
What does the Nucleus contain
Protons and Neutrons
What orbits the nucleus
Electrons
what are atoms bonded together called?
molecules
If there are the same amount of protons and electrons, What type of charge will the atom have?
Neutral
If their is a different amount of protons and neutrons what type of charge will the atom have?
Positive// Negative
What is the diameter of an atom based off (Which element)
Hydrogen
What is the rough atom diameter
5x10^(-8)mm
atomic radius
average distance between the Nucleus and the Outermost Electron
Atomic Number
number of protons IN the nucleus
Atomic Mass
Number of protons and Neutrons
What is the Equation for Atomic Mass
A = Z+N (A= Atomic Mass) (Z=Protons) (N=Neutrons)
Atomic Weight
ratio of the Average mass per atom of a sample
Isotope
element with the SAME atomic number but DIFFERENT atomic mass
What can be used to determine Age
Rate of Decay
True/False: Isotopes that decay are stable
False: Isotopes that don’t decay are considered stable
What type of reaction can decaying isotopes create
Nuclear Reactions
What type of charge does an electron carry
negative charge
what determines the bonding behavior of atoms
Valence Shells
Valence Shell
Outermost electron shell
If an atom has all of its electrons in the lowest position, is it stable or unstable
stable
If an atom is missing electrons in its lowerst position, is it stable or unstable
unstable
True/False: Most atoms are neutrally charged
TRUE
How many valence levels are there
4: K-level, L-Level,M-Level,N-level
What is the maximum amount of electrons that the K level can have
2
What is the maximum amount of electrons that the L level can have
8
What is the maximum amount of electrons that the M level an have
18
What is the maximum amount of electrons that the N level can have
32
Ionization
process where neutral particles are Ionized into charged particles
Negative Ion
atom gains electrons
positive Ion
Atom loses electrons
Compound
2 or more different types of atoms bind together
Ionic Bonding
Gain//Lose electron between 2 oppositely charged ions
Covalent Bonding
Sharing electrons
If their is equal sharing of electrons, what kind of bond will occur
Non Polar Bond
If their is unequal sharing of electrons what kind of bond will occur
Polar Bond
Cation
When an atom loses 1 or more electrons
Anion
When an atom gains 1 or more electrons
What do atoms have the tendency to do
share electrons
Electronegativity
how capable an atom is of attracting a pair of bonding electrons
dipole
1 atom exerts more force than another
polar covalent bond
small difference in force between 2 atoms
Ionic Bond (In regards to force)
Large difference in force between 2 atoms
Pure Non Polar Covalent Bond
No Electronegativity present
Element
basic type of matter that cannot be broken down any further
Compound
combination of 2 or more elements
What does the arrangement of the periodic table allow for
classification, organization, prediction of elemental properties
group
Vertical column of the periodic table
period
horizontal column of periodic table
What do groups all have in common
They all have the same amount of valence electrons
How many valence electrons does group 8 have
8
periodicity
prediction of elements reactivity based on location in periodic table
True/False: the higher the group number, the less likely they are to react
True: The higher the group number the more the electron shell is filled up, the more filled up the shell, the less reactive they are
What happens when electrons are added
attraction to the nucleus increases, electrons become more compact, less likely to be pulled away in reactions
What are the different types of metals
Alkali Metals, Alkaline Earth Metals, Transition Metals, Inner Transition Metals
What are examples of Alkali metals
Lithium, Sodium, Potassium
What are examples of Alkaline Earth Metals
Beryillium, Magnesium, Calcium
What are examples of Transition metals
Iron, Copper, Nickel
Inner Transition Metals
Thorium, Uranium, Plutonium
What are the different types of nonmetals
Chalcogens, Halogens, Noble Gases
What are examples of Chalcogens
Oxygen, Sulfur
What are examples of Halogens
FLuorine, Chlorine
What are examples of Noble Gases
Helium, Argon
What are examples of Metalloids
Boron, Silicon, Germanium, Antimony, Polanium