Atomic Structure 1
One subatomic particle, located in the the center of the atom, with a positive charge
protons
What element has this electron configuration?
2, 8, 8
Argon (Ar)
Each column the periodic table is called a _________
What is Group?
Identify the element in group 5, period 4
Vanadium (V)
What are the two categories of Matter
Pure Substances and Mixtures
One subatomic particle, located in the center of the atom, its charge is neutral (no charge)
neutrons
What is the electron configuration of Phosphorus?
2, 8, 5
Each horizontal row of the periodic table is called a_______, hint the first one only has 2 elements in it.
What is a Period?
What position is silver on in the periodic table?
Group 11, period 5
What is table salt (NaCl)?
Compound
One subatomic particle, located in orbitals surrounding 2 other subatomic particles, its charge is negative
electrons
What is the element that has the electron configuration 2,8,1
What is Sodium, Na
Fluorine in group 17 has how many valence electrons?
7 electrons
What is the difference between core electrons and valence electrons?
Valence electrons are in the outer most orbital, while core electrons are all the electrons in the inside orbitals.
What is oxygen (O2)?
Element
Forms of an element with a different number of neutrons.
What is Isotope
To show how many electrons go into each orbital
What is one element that is located in group 11?
Answers will vary, (Cu, Ag, Au, Rg, Tb, Bk)
What is the relationship between atomic structure and period & group numbers
Period number is the same number of energy level
Group number is the same number of valence electrons
What is the difference between Homogeneous Mixture and Heterogenous Mixture
A homogeneous mixture is uniform throughout and is evenly distributed. A heterogeneous mixture is not uniform throughout and have separation between different elements and compounds.
How do you determine atomic mass, atomic number, and mass number?
Atomic number is number of protons
Atomic mass is the average of the mass number of different isotopes
Mass Number = protons +neutrons
What is the symbol for the isotope Potassium with 20 neutrons.
3919K
How do you find the energy level of an element?
Add how many orbitals your element has, or use the period number.
The type of model that you used in your poster project to show the electron configuration of an element.
What is Bohr model
What is the different types of mixtures, list both heterogenous and homogenous?
Solution, Suspension, and Colloids