Atoms and Elements

matterbaby

100

All matter is made up of this.

Atoms.

200

The atom is made up of protons, neutrons and electrons, which are called the three _____.

Subatomic particles

300

This/these subatomic particle(s) are found in the nucleus of an atom.

Proton and neutron.

400

The atomic mass for an element is measured using all of the subatomic particles except for _____.

Electrons.

500

Atomic mass is measured using this unit.

Atomic mass unit (AMU)

periodt

100

The different elements are defined by this.

# of protons.

200

horizontal rows of the periodic table are called_____.

periods.

300

This element is in group 2, period 4

Calcium

400

anything to the right of the bold line on the periodic table is a _______.

nonmetal

500

The atomic mass for an element on the periodic table has decimals. This is because the periodic table really tells us the _______ for an atom.

average atomic mass

put a ring on it

100

carbon has this many valence electrons

4

200

the model that we use to represent the electrons of an atom is called _____.

bohr model

300

you can tell how many electron rings an atom will have based on the element's _____ on the periodic table.

period

400

the electrons on the outside electron ring are the _____

valence electrons.

500

Phosphorus has this many electrons and this many valence electrons

15 E, 5 VE

bond, chemical bond

100

a strong attraction between two atoms is called a ___.

chemical bond.

200

Cl and N would form this type of bond.

Covalent

300

This type of compound is typically a solid at room temperature

ionic

400

How many of each element are in the following chemical formula? 3C₅H₃O

15C, 6H, 1O

500

some covalent compounds have an uneven spread of electrons, leading to a slight charge on opposite ends of the molecule. These are _____ compounds.

polar