The Periodic Table
The horizontal rows on the periodic table (1-7).
What are periods?
What is the difference between an element and compound?
What are an element is composed of only one type of atom while a compound is composed of two more different elements?
Draw the Lewis dot structure for Magnesium
What is symbol Mg with two valence electrons one in each position?
Describe what type of elements form an ionic bond
What is metal(s) + nonmetal(s)?
What does the Atomic number mean?
What is the number of Protons, which also equals the number of electrons for a neutral atom?
The vertical columns on the periodic table (1-18).
What are groups or families?
Define homogeneous mixture and provide an example
What is a mixture in which the composition is uniform throughout the mixture. Ex. Salt Water
Draw the Lewis dot structure for Aluminum
What is symbol Al with 3 valence electrons each in different positions?
Describe what type of elements form a covalent bond
What are 2 or more nonmetals?
What is the atomic mass used to calculate?
What is the number of neutrons by subtracting the atomic number from the atomic mass?
The modern periodic table organizes elements according to this.
What is increasing atomic number?
Provide an example of a physical change and a chemical change
What is physical change (tearing paper) and chemical change (burning wood)?
Draw the Lewis dot structure for Silicon
What is symbol Si with 4 valence electrons each in a different position?
Draw the Bohr model for He
What is 2 valence electrons in the first shell
What is an example of plasma?
What is lightning?
Reminder: Plasma is a superheated matter – so hot that the electrons are ripped away from the atoms forming an ionized gas. It comprises over 99% of the visible universe.
Name the element located in period 5 group 17.
What is Iodine (I)?
Define an atom and how its identity is determined
What is the smallest unit into which matter can be divided without the release of electrically charged particles? Identity determined by number of protons
Draw the Lewis dot structure for Sulfur
What is symbol S with 6 valence electrons evenly dispersed in each position?
Draw the Bohr model for H
What is 1 electron in the first shell?
Surprise! (Extra 100 pts) Describe the difference between a mixture and a compound? Provide an example for each!
What is compound are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances but they still each retain their own properties.
Surprise! Daily Double: list the four states of matter and an example for each?
What is solid, liquid, gas, plasma?
Describe the Octet Rule
What is atoms gain, lose or share electrons to attain an outer shell electron configuration nearest that of a noble gas (stable)
Draw the Lewis dot structure for Fluorine
What is symbol F with 7 valence electrons evenly dispersed in each position?
Without looking at a periodic table, what is the group number for halogens and are they a metal or nonmetal?
What is 17 and nonmetal?
heat changing H2O into steam is an example of what and why?
wood rotting is an example of what and why?
What is physical change?
What is chemical change?