Atoms
Periodic Table
Ions and Isotopes
Radioactivity
Acids and Bases
100

What are the three subatomic particles?

Protons, Neutrons and Electrons

100

What does the atomic number mean?

Number of protons

100

What subatomic particle changes to for an isotope?

Neutrons

100

What are the three types of radioactive decay?

Alpha, Beta and Gamma

100

Is the pH of an acid below 7 or above 7?

Below

200

What is the electron shell configuration?

2, 8, 8

200

What does the atomic mass equal to?

Number of protons and neutrons

200

What are the two types of ions?

Cations and Anions

200

What is half-life?

The amount of time it takes for one half of the atom to decay

200

What substance has a pH of 7?

Water

300

What is an atom?

The building blocks of life

300

What are valence electrons?

The electrons found on the outermost shell

300

What charge does a Magnesium (Mg) ion have?

+2

300

Which type of radioactive decay does not change the atomic number of an element?

Gamma decay

300

What indicator tells you the exact pH of a substance?

Universal indicator

400

Which subatomic particle has the least amount of weight?

Electrons

400

List an element in the same period as Phosphorus

Sodium, Magnesium, Aluminium, Silicon, Sulfur, Chlorine, Argon

400

Is Calcium (Ca) an anion or a cation? Explain why?

A cation, because it loses 2 electrons making it more positive

400

Explain what both Alpha and Beta Decay are

Alpha = ejects 2 protons and 2 neutrons

Beta = neutron converts to a proton and increase the atomic number by 1

400

What do bases release?

Hydroxide ions (OH-)

500

How are atoms listed on the Periodic Table?

In order of atomic number (number of protons)

500

What do groups tell us on the Periodic Table?

The number of valence electrons (electrons on the outermost shell) for elements in that group

500

How are anions named?

They are named by dropping the end of the name and adding -ide

E.g. Oxide

500

Carbon-14 has a half life of 5700 years. If a sample initially contains 50 grams of Carbon-14, how much Carbon-14 remains after 17,100 years

6.25 grams

500

What elements are produced from an acid and metal reaction?

Salt and Hydrogen