Atomic Structure
Element Identity & Reactivity
Periodic Table Basics
Metals, Nonmetals, & Metalloids
Chemical Bonding
100

 This is the location where electrons are found in an atom.

What is the electron cloud?

100

 The number of these subatomic particles determines an element's identity.

What are protons?

100

 The vertical columns on the Periodic Table are called this.

What are groups or families?

100

This type of element is a good conductor of heat and electricity.

What is a metal?

100

This phase of the moon occurs when the Moon is positioned between the Earth and the Sun, making it invisible from Earth.

What is the New Moon?

200

Protons and neutrons are located in this central part of an atom.

What is the nucleus?

200

 These electrons determine an element's chemical properties and reactivity.

What are valence electrons?

200

The horizontal rows on the Periodic Table are called this.

What are periods?

200

These elements are generally poor conductors and can be found on the right side of the Periodic Table.

What are nonmetals?

200

This phenomenon occurs when the Moon passes between the Earth and the Sun, blocking all or part of the Sun's light.

What is a solar eclipse?

300

This subatomic particle has a positive charge.

What is a proton?

300

Atoms of elements that have a full outer shell of electrons are very reactive. True or False?

False - They are not reactive

300

Elements in the same group share similar these.

What are chemical properties?

300

This element is a metalloid and is commonly used in computer chips. Similar to rubber.

What is silicon?

300

This event happens when the Earth moves between the Sun and the Moon, casting a shadow on the Moon.

What is a lunar eclipse?

400

These two subatomic particles have approximately the same mass.

 What are protons and neutrons?

400

Elements in the same group/family have the same number of these electrons.

What are valence electrons?

400

The information that can be found in a period on the Periodic Table.

What is the number of energy levels?

400

This staircase-like line on the Periodic Table separates metals from nonmetals.

What is the metalloid line?

400

The tilt of Earth's axis combined with its orbit around the sun results in these yearly climatic patterns.

What are seasons?

500

 In a neutral atom, the number of these is equal to the number of protons.

What are electrons?

500

This group of elements is known for being non-reactive gases.  Name 2

What are noble gasses?  Any 2 elements in group 18.

500

The element with atomic number 2, found in Group 18, a noble gas.

 What is helium?

500

This rare metal is liquid at room temperature and is often used in thermometers.

What is mercury?

500

This effect, caused by the gravitational pull of the Moon, results in the rising and falling of Earth's oceans.

What are tides?