Families
Isotopes
Sub-Atomic Particles
Bohr Atomic Models
How Many Atoms?
100

The first column or group of elements which includes Lithium, Sodium and Potassium is?

Alkali Metals

100

Isotopes of the same element have the same atomic number but a different atomic ________ ________.

mass number or mass units

100

The three sub-atomic particles are?

Protons, neutrons and electrons

100

What element is depicted below?

Lithium (Li)

100

What is the number "3" in this compound called?

3Fe(OH)2

The coefficient

200

How many valence electrons do each of the elements in the Alkaline Earth Metals family have?

2 valence electrons

200

Some isotopes are stable while others are __________.

Radioactive

200

What two sub-atomic particles can be found in the nucleus?

Protons and Neutrons

200

What element is depicted below?


Carbon (C)

200

What is the number "2" in this compound called?

3Fe(OH)2

The subscript

300

The Halogen family (column #17) represent three states of matter - solids, liquids and gasses. Which halogen is a liquid at room temperature?

Bromine (Br)

300

What element (and its isotopes) is depicted below?

Hydrogen

(The isotopes are Protium, Deuterium and Tritium)

300

Where can electrons be found in an atom?

On the rings, shells or orbits.

300

Which energy level is closest to the nucleus?

n = 0, n=1, n=2, or n=3

n = 1; there is no energy level known as n = 0

300

How many total atoms are present in this compound?

5Fe3O4

15 Iron (Fe) atoms + 20 Oxygen (O) atoms = 35 total atoms

400

These metals located in the center of the periodic table are what people commonly associate as "metals" due to their widespread use. 

Transition metals

400

The hyphens used in isotopes, like Magnesium-24, Magnesium-25, and Magnesium-26 indicate the _______  ________ present for each isotope.

atomic mass

400

Which sub-atomic particles enables atoms to bond with other atoms?

Electrons or valence electrons

400

The energy needed to remove an electron from an atom is called the _________  _________. 

Ionization Energy

400

How many total atoms are present in this compound?

2Al2(CO3)3

4 Aluminum (Al) atoms + 6 Carbon (C) atoms + 18 Oxygen (O) atoms = 28 total atoms

500

"Krypton," "Xenon," and "Radon" are not far away stars; rather they are members of this family of elements.

Noble gasses

500

Which isotope of Oxygen is the most commonly found oxygen on Planet Earth?

Oxygen-16

500

The atomic number for a neutral element equals the # of ________ or ________.

protons and electrons

500

The tendency of an atom to want to gain electrons is known as its _______________.

 

Electronegativity

500

How many total atoms are present in this compound?

4Sn(NO3)2

4 Tin (Sn) atoms + 8 Nitrogen (N) atoms + 24 Oxygen (O) atoms = 36 atoms

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