Atoms
Periodic Table
PTE continued
Definitions
Miscellaneous
100
The smallest particle of an element that still has all the properties of that element.
What is an atom?
100

The Periodic Table is split into these categories.

What are metals, nonmetals, and metalloids?

100

Metalloids are found here on the Periodic Table.

What is between metals and nonmetals?

100
A type of matter that cannot be broken down into another substance through chemical reactions.
What is an element?
100

Anything that takes up space and has mass.

What is matter?

200

General term for the particles that make up an atom.

What is subatomic particles?

200
The vertical columns in the Periodic Table.
What are groups?
200
The horizontal rows in the Periodic Table.
What are periods?
200

An element that can possess the properties of both metals and nonmetals.

What is a metalloid?

200

Electricity is the flow of these.

What are electrons?

300

The center mass of an atom, which contains protons and neutrons.

What is the nucleus?

300
Describe three properties of nonmetals.
What are soft, brittle, dull, and poor conductors of electricity and heat?
300
Describe three properties of a metal.
What are lustrous, shiny, hard, malleable, good electrical conductors, and good heat conductors?
300

The sum of the atomic masses of all the atoms in a molecule.

What is molecular weight?

300

Give the equation that tells us the number of neutrons found in an element's atom.

What is atomic mass - atomic number = number of neutrons?

400
Name the three types of subatomic particles and their charges.
What are protons (+), neutrons (0), and electrons (-)?
400
The atomic mass of an atom describes the mass of these two subatomic particles.
What are protons and neutrons?
400
The atomic number, written above an element's symbol on the Period Table, represents this.
What is the number of protons and electrons in the element's atom?
400

A property of a substance that can be observed without changing the substance’s identity. Give an example.

What are physical properties? Color, texture, smell, taste, density, freezing point, melting point, etc.

400

Give an example of a metal and an example of a nonmetal that we used in lab.

What are zinc, aluminum, copper, iron, or magnesium (metals), and carbon or sulfur (nonmetals)?

500
Draw and label a diagram of an atom.
What is...?
500
The Periodic Table organizes the elements according to these properties.
What are physical and chemical properties?
500

The element Selenium (Se) has an atomic number of 34 and an atomic mass of 79. How many neutrons does one atom of Selenium possess?

What is 79 - 34 = 45?

500

Characteristics that can be observed or measured during a chemical reaction. Give an example.

What are chemical properties?  Reactivity to acids, pH, or combustion

500

What is the molecular weight of NaOH?

What is 23 + 16 + 1 = 40?

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