Elements, Compounds, Atoms, Molecules, & Bonds

Matter and Elements

100

what is anything that has mass and takes up space?

matter

200

What is matter in its simplest form?

element

300

What is the smallest form of an element that still displays its particular properties?

atom

400

What are the two main parts of an atom?

a nucleus (protons and neutrons) and an electron cloud (electrons)

500

What kind of charge does an atom have if it contains an equal number of protons and electrons?

neutral

compounds and molecules

100

What is formed when two or more elements combine in simple whole-number ratios of atoms?

compound

200

What do we call a group of two or more atoms held together by chemical bonds?

molecule

300

True or false — all molecules are also compounds.

false (some, like O₂, are not compounds) 

400

What holds the atoms in a molecule together?

chemical bonds

500

What do compounds consist of?

Two or more elements combined in simple whole-number ratios of atoms

bonds

100

What type of bond is H₂O?

Covalent bond

200

What type of bond is NaCl?

Ionic bond

300

What kind of bond forms when electrons are transferred from one atom to another?

Ionic bond

400

What kind of bond forms when electrons are shared between atoms?

Covalent bond

500

What is another name for a molecular compound?

Covalent compound

miscellaneous

100

What is chemical formula?

A combination of symbols that show the ratio of elements in a compound

200

How many atoms total are in C₆H₁₂O₆?

24 atoms

300

How many atoms of each element are in Ba(OH)₂?

1 Barium atom, 2 Oxygen atoms and 2 Hydrogen atoms.

400

How many atoms of each element are in the following chemical formula: CH₄OH?

1 Carbon atom, 5 Hydrogen atoms, 1 Oxygen atom

500

How many Oxygen atoms are in the following chemical equation? (On one side of the equation)

6CO₂+6H₂O→C₆H₁₂O₆+6O₂ 

18