Simple Chemistry

Covalent Compounds

100

N₂O₃

Dinitrogen Trioxide

200

H₂O

Dihydrogen monoxide or water

300

What types of elements make up covalent compounds?

non-metals

400

Disulfur Decafluoride

S₂F₁₀

500

XeF₆

Xenon Hexafluoride

Parts of an Atom

100

The inner part of an atom that contains the proton and the neutron is called the __________.

Nucleus

200

These particles have a positive charge and are found inside the nucleus.

proton

300

These particles are located within the nucleus, and have no charge.

Neutron

400

These particles are negatively charge and are found outside the nucleus.

electrons

500

Most of the mass of an atom is located here.

nucleus

Atomic Masses

100

If an atom was enlarged so the electrons were spinning around the stands of a football stadium, how big would the nucleus be?

marble

200

Atomic masses are measured in what?

AMU

300

A proton has the atomic mass of what?

1

400

A neutron has the atomic mass of what?

1

500

An electron has a mass of what?

1/1836

Name that compound

100

Na₂O

sodium oxide

200

NH₄Br

ammonium bromide

300

CCl₄

carbon tetrachloride

400

Cr(NO₃)₂

Chromium (II) Nitrate

500

SnO₂

Tin (IV) Oxide)

Atomic Numbers

100

Atomic numbers of an atom are the same as the number of what in an atom?

protons

200

Carbon's atomic number is _______.

6

300

What element has a number of 56?

barium

400

Why does hydrogen have an atomic number of 1?

because it only has one proton

500

Some atoms have more ___________, which makes it an ion and gives it a negative charge

electrons