BJU Science 6 - Chapter 7: Atoms and Molecules

What is 27 in the top left?

What are molecules formed from two or more different elements called?

Name this part of the atom

Identify the following characteristics as belonging to an acid, a base, or both: can burn; can be corrosive

Identify the following characteristic as belonging to an acid, a base, or a salt: helps digest food in the stomach.

Which type of bond forms crystals?

Which scientist developed a simplified model of an atom based on the idea that electrons move in shells?

Identify the following as being an example of an acid, a base, or a salt: chalk.

Name this part of the atom

Identify the following characteristic as belonging to an acid, a base, or both: bitter taste.

What is Co in the middle?

The atomic number is based off the number of what in an element?

What is the tiniest recognizable part of an element called?

What is a reaction in which molecules combine to form a new substance?

Dmitri Mendeleev developed the periodic table of the elements, which does what with elements?

Identify the following as being examples of an acid, a base, or both: lemons, vinegar, and tomato juice.

Identify the following characteristic as an acid, a base, or a salt: forms hydroxide ions when dissolved in water.

Identify the following characteristic as belonging to an acid, a base, or both: sour taste.

What do you call a solution that is neither basic nor acidic? (Like water, found at 7.0 on the pH scale)

What are strong acids that can eat away metals said to be?

What are the the ←horizontal→ rows on the periodic table of elements called?

Which reaction occurs when a compound is broken down into simpler compounds?

Identify the following characteristic as an acid, a base, or a salt: usually composed of a metal and a nonmetal.

What can help you determine the concentration of acids or bases in a solution?

What are atoms that have gained or lost electrons called?

What are substances that has only one kind of atom?

What is a substance that changes color when exposed to acid or base solutions?

What is formed when positively and negatively charged ions attract each other?

Abbreviations for the names of elements are called what?

Identify the following characteristic as acid, a base, or a salt: forms hydrogen ions when dissolved in water.

The sum of the number of protons and neutrons results in an atom’s approximate what?

Identify the following characteristic as belonging to an acid, a base, or both: changes colors of an indicator.

Identify the following characteristic as belonging to an acid, a base, or both: slippery to touch.

Which scientist developed the periodic table of the elements?

Which part of the atom has a positive (+) charge?

What is 58.93 at the bottom?

The number of protons plus neutrons is the atom’s approximate what?

In what do atoms share electrons?

In a periodic table, the atomic _________ is based on the number of protons in the nucleus

What are bases that dissolve in water called?

What is the process of joining different types of atoms to form a different substance?

What is it called when symbols and numbers are used to shorten the name of a compound? (Like H²O)

Name this part of the atom

What are the ↑vertical↓ columns of the periodic table called?

What is the center part of an atom?

Name this part of the atom (Neutral)

Name this part of the atom (Positive)

Name this part of the atom (Negative)

Identify the following as being examples of an acid, a base, or both: baking soda, soap, bleach.

Identify the following as being an example of an acid, a base, or a salt: antacid tablets.

Which part of the atom has a negative (-) charge?

What doe you call the study of matter?

Acid, a base, or a salt: formed when an acid and a base neutralize each other.

Atoms bond with other atoms to complete their outer what?

What is Cobalt above the Co?

How many atoms of carbon are in the compound H²CO³?