C1 Atomic Structure - Atoms

Flashcards covering introductory concepts on atoms, elements, compounds, periodic table organization, and writing chemical formulae.

Where can you find the metals on the Periodic Table?

On the left side.

Where can you find the non-metals on the Periodic Table?

On the right side.

What are the columns on the Periodic Table called?

Groups.

What are the rows on the Periodic Table called?

Periods.

What is the name of the metal that is a liquid at room temperature?

Mercury.

What Greek word does the word "atom" originate from, and what does it mean?

It comes from the Greek word "Atomos", which means indivisible.

What is the structure of an atom as shown in this diagram?

All atoms are made up of a tiny central nucleus with electrons orbiting around it.

What is the definition of an element?

A pure substance made from only one type of atom.

What is the definition of an atom?

The smallest part of an element that can exist.

What chemical symbol represents Gold, and what type of atoms is it made of?

Gold is represented by $\text{Au}$ and is made of gold atoms.

What chemical symbol represents Iron, and what type of atoms is it made of?

Iron is represented by $\text{Fe}$ and is made of iron atoms.

What chemical symbol represents Magnesium, and what type of atoms is it made of?

Magnesium is represented by $\text{Mg}$ and is made of magnesium atoms.

What is a compound?

A substance made from atoms of two or more different elements, bonded together.

In molecular diagrams, what does the overlap between atom circles represent?

A chemical bond.

What are the rules for writing a chemical formula?

1. Write the elemental symbol for each element in the compound. 2. Make sure each symbol starts with a capital letter. 3. If you have more than one atom of a certain element, write the number of atoms subscript after the element's symbol.

What is the chemical formula for sodium chloride?

$$\text{NaCl}$$

What is the chemical formula for carbon dioxide?

$$\text{CO}_2$$

What is the chemical formula for ammonia?

$$\text{NH}_3$$

What is the chemical formula for water?

$$\text{H}_2\text{O}$$

What is the chemical formula for calcium carbonate?

$$\text{CaCO}_3$$

what is an element?

Is a pure substance that is made up of only one type of atom

What is an atom?

An atom is the smallest part of an element that can exist.

What is a compound?

A compound is made from atoms of 2 or more elements that are bonded together chemically