The first person to suggest the idea of an atom, 4th century BC
Who is Democritus
100
What is the atomic mass, atomic number, and number of protons, electrons and neutrons for COBALT
59, 27, 27, 27, 32
100
Label as Metal or Nonmetal: Iron, Bromine, Calcium, Sulfur, Chlorine
Metal, NON, Metal, NON, NON
100
What type of ions have a name ending in -ide? 1. cations 2. anions 3. only metal ions
Anions
100
Which compound is formed by combining a Metal and a Nonmetal?
Ionic
200
Matching: Proton, Neutron, Electron
Chadwick, Goldstein, JJ Thomson
Proton = Goldstein Neutron = Chadwick Electron = JJ Thomson
200
Which of the following is true: 1. The mass of a proton is the same as the mass of an electron 2. The mass of a proton is the same as the mass of a neutron 3. Electrons are negatively charged and are the heaviest of the 3 subatomic particles
#2, Protons have the same mass of electrons, and BOTH are HEAVIER than electrons, which are extremely light
200
Elements on the periodic table are arranged due to their: 1. similarity in size 2. similarity in date of discovery 3. similarity in properties
Similarity in Properties
200
DAILY DOUBLE POINTS: The lowest whole-number ratio of ions in an ionic compound
Formula Unit
200
On your cell phone, two numbers are not assigned any letters. What are they?
the 1 and 0 keys
300
Developed a Periodic Table based on Atomic Mass
Who is Mendeleev
300
True or Fasle: the Nucleus of an atom is positively charged and has a high density
True
300
Which of the following elements is in the same period as Potassium? 1. Sodium 2. Calcium 3. Chlorine 4. Hydrogen
Calcium
300
Which of the following compounds is Molecular? 1. CaO 2. SCl2 3. Be3N2
2. SCl2
300
How many sig figs are in the number 450.00
5
400
DAILY DOUBLE POINTS: Rutherford's experiments found that the positive region of an atom is located in the ___________
What is the Nucleus
400
Which of the following is correct: Mg2+ has 11 electrons P3- has 18 electrons F1- has 8 electrons
P3- has 18 electrons
400
Iron, Mercury, and Manganese are all examples of this category of elements.
Transition Metals
400
Name the following compounds: 1. H3PO4 2. N4O2
Phosphoric Acid Tetranitrogen Dioxide
400
This symbol on the keyboard was originally the 27th letter of the alphabet
&
500
Which of the following parts of Dalton's Atomic Theory has been proven wrong? 1. All elements are made up of tiny indivisible particles called atoms 2. Atoms of the same element are identical 3. Atoms chemically combine to form compounds 4. During reactions, atoms are rearranged and not changed
#1, because we now know that atoms are made up of Protons, Neutrons, and Electrons
500
Find the Average Atomic Mass given: Atomic Mass = 25.5; 63% Atomic Mass = 24.7; 37%
25.204
500
The majority of elements on the periodic table are: metals nonmetals gases metalloids
What are Metals
500
What are the formulas for the following compounds: Cobalt (II) Oxide Hydrobromic Acid
CoO HBr
500
This word is the most commonly used word in radio pop songs