Atoms, Metric System, and Significant Figures

Periodic Table

100

What are the first two elements in the periodic table?

Hydrogen and Helium

200

What is the atomic number for Sodium?

11

300

What does the atomic number tell you?

The number of protons in an atomic nucleus!

400

Arrange in order from lowest to highest atomic number: Nitrogen, Oxygen, Carbon

Carbon, Nitrogen, Oxygen

500

What is the fifteenth element in the periodic table and its atomic symbol?

Phosphorus, P

Unit Conversions

100

How many meters are in 3 kilometers?

3000 m

200

Convert 3917 mL into Liters.

3.917 L

300

Convert 231 cm into mm

2310 mm

400

Convert 3.14 x 10³ meters into millimeters

3140 mm

500

Convert 5.7 THz (Tera Hertz) to GHz (Giga Hertz)

5700 GHz

Significant Figures

100

How many sig figs are in 208.79142?

8

200

15.61 + 13.3 = 

28.9 (3 sig figs)

300

0.7590 - 0.052 =

0.71

400

63.9 m² / 9.0s =

7.1 m²/s

500

72.003 x 22.10 = 

1591

Scientific Calculations

100

10³ x 10^-8

10^-5

200

Express in standard notation:m 8.25 x 10^-9

0.00000000825

300

What is the scientific notation of 16600.87

1.660087 x 10⁴

400

(0.99 x 10⁷) x (27.15 x 10^-13) = 

Express in scientific notation and with the correct number of significant figures

2.7 x 10^-5

500

(9.54 x 10^-4) / (1.150 x 10^-8) =

Express in scientific notation and with the correct number of significant figures

8.29 x 10⁴

Wild Card

100

How many elements are in row two of the periodic table?

8

200

True or False: an atom will always have the same number of protons and neutrons

False

300

What is the value of a nanometer

x 10^-9

400

Convert 55553 mm to kilometers. Write the answer in scientific notation.

5.5553 x 10^-2 km

500

Arrange the three elements in order of most to least protons: Argon, Helium, Neon, and Chlorine.

Argon, Chlorine, Neon, Helium