This word describes how metals can be hammered into sheets/shapes easily.
What is malleable?
100
This periodic table group forms +1 ions, has low ionization energy, and is very reactive.
A) Alkali Metals
B) Halogens
C) Noble Gases
D) Transition Metals
What are Alkali Metals?
100
Ionic Compounds form between ____+___, while covalent compounds form between nonmetal + nonmetal
What is metal + nonmetal?
100
The number of grams in 1 mole of gold.
What is 197 grams?
100
How we separate colored dye
A) Distillation
B) Chromatography
C) Filtration
D) Sanitation
What is B) Chromatography?
200
This theory describes why metals are good conductors of both heat and electricity.
What is the "Sea of Electrons"?
200
JJ Thompson created the ________ model in 1897. Unlike Dalton, he thought the atom could be broken down into smaller negatively charged pieces (electrons). Since + and – charges must cancel out he thought all atoms had electrons embedded in a positively charged sphere.
What is Plum Pudding?
200
The formulas for carbon tetrachloride and disilicion hexabromide.
What are CCl4 and Si2Br6?
200
The drawing + naming of symbols in the speed of light and energy triangle.
What is c = speed of light = 3.00 × 108 m/s
λ = wavelength (meters, m)
v = f = frequency (Hertz, Hz or s-1)
E = energy (Joules, J)
h = Plank’s constant = 6.63 × 10-34 Js
v = f = frequency (Hertz, Hz or s-1)
200
Homogenous mixtures, like lemonade, have the exact same appearance throughout. Another name for a homogenous mixture is _________.
A) A compound
B) An element
C) A solution
D) A pure substance
What is C) A solution?
300
F, Cl, Ne, As, H
Which two of these elements are the most similar?
What is F and Cl?
300
Rutherford made which of the following conclusions from his gold foil experiment?
A) The atoms consists of mostly empty space
B) Most of the volume of an atom is occupied by its nucleus
C) Most of the mass of an atom is located in the nucleus
D) The nucleus is positively charged.
What is A, C, and D?
300
To write out the formulas for ionic compounds you use the ______ method and for covalent compounds you read the ______
What is the Criss-Cross Method/Prefixes?
300
An electromagnetic wave has a frequency of 6.45 x 10^14 Hz. The wavelength of the wave is _________
What is 4.65 x 10^-7 m?
300
Water (H2O), Salt (NaCl), and Sugar (C12H22O11) are all pure substances because ________
What is "Each are made up of 2 or more elements to form compounds with fixed ratios that can’t easily be broken down further"
400
Ionization energy is the amount of energy needed to remove an electron from an atom's outermost shell. The 1st ionization energy decreases as you go down a group because _______
What is "The distance between the nucleus & the valence electron increases, there is a shielding effect of inner shell electrons, and the positive charge of the nucleus loses power to pull valence. electrons in."
400
The 2 of Dalton's 5 Postulates that are now FALSE.
Postulate 1: Atoms are indivisible and indestructible
Postulate 2: All atoms of a given element are identical in their physical/chemical properties
Postulate 3: Atoms of different elements differ in their physical and chemical properties
Postulate 4: Atoms combine to form compounds in simple, whole number ratios
Postulate 5: Chemical reactions result in the separation and recombination of atoms
What are Postulates 1 & 2?
400
These are the chemical formulas for Aluminum Sulfate AND Sodium Carbonate.
What is Al2(SO4)3/Na2CO3?
400
A microwave oven emits an electromagnetic wave with an energy of 2.0 x 10^-23 J. The frequency of the wave is ___________.
What is 3.02 x 10^10 Hz?
400
This is the correct electron dot diagram for Magnesium Chloride MgCl2.
What is: Bracket around Mg in the middle with +2 sign and no dots. Bracket around two outer Cl with -1 sign and 8 dots.
500
Label the charges AND group numbers on this periodic table
What is +1, +2,(skip the d-block) +3, +4/-4, -3, -2, -1, 0. 1,2, (skip d-block) 3, 4, 5, 6, 7, 8
500
Match the Scientist with his view on Atoms:
(1) John Dalton
(2) JJ Thompson
(3) Rutherford
(4) Bohr
(A) “Negative particles are evenly spread throughout a positive sphere”
(B) “All matter is made out of tiny, indivisible particles called atoms”
(C) “Electrons exist at fixed energy levels surrounding the nucleus”
(D) “There is a dense, positively charged nucleus”
What is John Dalton - B, Thompson - A, Rutherford- D, Bohr - C
500
The formulas for Iron (III) Phosphate and Lead (IV) Nitrite
What are FePO4 / Pb(NO2)4?
500
The energy of an electromagnetic wave that has a wavelength of 0.035 m is ___________
What is 5.68 x 10^-24 J
500
This the correct lewis dot structure for CO2 and SO2.
What is Carbon double bonded to two Oxygen and Sulfur double bonded to 1 Oxygen, single bonded to 1 Oxygen and with a lone pair.