Chemical and Physical
What kind of property is color?
Physical-- Intensive
How many atoms or molecules equal one mole of an element.
What is Avogadro’s number: 6.022 x 10^23?
The mass and charge of a neutron.
What is 1 amu and neutral?
Vertical columns on the Periodic Table are called ___________ and indicate how many ____________ an element has.
groups/families
valence electrons
Changes in these two things can cause a physical phase change to occur.
Pressure and Temperature
What are two examples of a physical change?
Phase change (solid to gas, gas to solid, etc.)
Cutting, crushing, smushing, breaking, molding, snapping, etc.
The two units between which atomic mass allows you to convert.
What is grams and moles?
This researcher discovered that the atom is mostly space and has a nucleus by bombarding it with radiation.
Who is Rutherford?
Halogens, 7, reactive
This word describes the physical phase change of an element going from solid state to gaseous state
What is sublimation?
The density of iron is 7.874 grams/mL. What is the density of a piece of iron with a mass of 30 grams?
7.874 grams/mL
How many moles are in 80.9445 grams of Aluminum?
3 moles of Aluminum
The mass, charge, and location of an electron.
What is 1/2000 of an amu, -1, and in the electron clouds?
Draw the Bohr Model for Li-6.
Drawn on whiteboard.
How many protons, electrons, and neutrons are in Al-28?
What is 13 protons, 13 electrons, and 15 neutrons?
What is the density of a cube that has a width of 2.0 cm and a mass of 12 grams?
1.5 grams/ cm3
How many moles are in 1.2044 x 1025 atoms of Zn?
20 moles
Researcher that discovered that electrons exist in energy levels/clouds around the nucleus.
What is the definition of atomic radius and it’s trend on the periodic table?
Atomic radius is the size of an atom from its nucleus to its valence electrons. The trend is that it increases as you go from top right to bottom left (right to left and top to bottom).
What is the definition and trend of electronegativity?
Electronegativity is how much an element likes electrons and tries to steal them from other electrons. It increases as you move from metals to non-metals.
You have a graph of mass (g) vs. volume (mL). Using the best fit line, you choose two points-- (1.5, 4) and (3, 6).
What are you finding when you calculate the slope? What is the value of what you found? What are it's units?
Density-- 0.75 grams/mL
How many grams of Copper are equal to 3.07 x 1034 atoms of Copper?
3.24 x 1012 grams Copper
How many protons, neutrons, and electrons are in an atom of Cr-52?
What is 24 protons, 24 electrons, 28 neutrons?
What is the difference between halogens and alkali metals in behavior?
Halogens like to steal electrons, and alkali metals like to give their valence electron away.
You have an isotope with a mass of 30 grams/mol and abundance of 15%. Another isotope has a mass of 25 grams/mol and abundance of 85%. What is the atomic mass of your element?
25.75 grams/ mol