Dimensional Analysis
How many cm are in 19 inches?
48.26 cm
How many significant figures does 126 have?
3
How many centimeters are in 1 m?
100 cm
Who is known as the "father of the atomic theory" and proposed that all matter is made of indivisible particles called atoms?
John Dalton
What is the difference between periods and groups?
Periods are the rows, groups are the columns.
4.8 qt is the same as how many mL?
4546.09 mL
How many significant figures does 0.005 have?
1
1 m equals how many km?
0.001 km
Which ancient Greek philosopher first suggested that matter is composed of small, indivisible particles called "atomos"?
Democritus
This family on the Periodic Table contains elements that are shiny, malleable, and ductile. They are good conductors of electricity.
The Transition Metals!
How many g are in 18 lbs?
8165.34 g
How many significant figures does the following have?
0.0090560
5
How many deciliters are in 2.2 kL?
22,000 dL
JJ Thomson discovered the electron. How?
He performed the cathode ray experiment by shooting a beam of electrons between 2 metal plates and observing the beam bent upwards towards the positively charged plate. He did the same, but with magnets instead of charged plates. He ultimately disproved the theory that atoms were the smallest particle in existence.
Who developed the Periodic Table?
Dmitri Mendeleev
How many km/hr is 5 m/s?
18 km/hr
Perform the following calculation and answer with correct significant figures:
0.5690 + 15 = ?
16
Which is bigger... 0.05 kg or 7l7 mg?
Explain Ernest Rutherford's gold foil experiment.
He conducted the gold foil experiment, where he shot alpha particles (positively charged) at gold foil and saw that some deflected. He concluded that the center of the atom must be made of a positively charged particle! Thus, the proton was discovered.
This family has an element that is often used in computer chips because of its unique properties.
Metalloids (and the element is Silicon)
Convert 0.28 g/cm3 to g/m3
280,000 g/m3
Perform the following calculation and answer with the correct number of significant figures:
10. x 62.9 = ?
630
What does King Henry Died By Drinking Chocolate Milk stand for?
Kilometers, Hectometers, Dekameters, Basic, Decimeters, Centimeters, Millimeters
Describe in detail the current model of the atom today and who proposed it.
Schrodinger proposed that the atom has different shaped orbitals, which are areas of electron clouds. The first and second orbitals are spherical in shape and contains 2 electrons. The next shell has 3 orbitals, each with a dumbbell shape. These are called "p" orbitals.
Which families are considered "highly reactive"?
Alkali Metals, Halogens