Show:
Atoms
Isotopes
Ions
Names and Formulas
Mixed Bag
100
Name the three subatomic particles within an atom
Proton Neutron Electron
100
If an atom has 12 protons and 15 neutrons, what is its isotope name?
Magnesium - 27
100
How many valence electrons does lithium have?
1
100

What is the name of FeO2

Iron (IV) oxide

100

The number of electrons gained or lost in order to become stable are known as

the oxidation number or charge

200

What is the charge on an electron and where are they found?

negative, electron cloud

200
If an element has 20 protons, 20 electrons, and 20 neutrons, What is its ATOMIC NUMBER?
20 Atomic Number = Number of Protons
200
What is the charge of Aluminum when he becomes an ion?
Al +3
200

Chemical formula for manganese (III) phosphate

MnPO4

200

List the seven metalloids.

Boron, Silicon, Arsenic, Tellurium, Astatine, Germanium and Antimony

300

Define atomic mass

The weighted average of all of the isotopes of an atom.

300

An atoms Mass Number is 30.... Keeping in mind that the atomic number is 17, how many neutrons does the atom contain? 

It has 13 neutrons.. mass number - atomic number = neutrons 30 - 17= 13

300
Does oxygen give or take electrons when he becomes an ion?
Take
300

Which type of substances use numerical prefixes in their formulas and names ?

covalent substances or non-metals combining with other non-metals

300

What electron configuration would come after 7p, if the element existed?

8s

400

Mass number = ? + ?

atomic number(protons) + neutrons

400
Neutral atoms always have an equal number of what two subatomic particles?
protons and electrons
400

The period number on the Periodic table (1-7) tells us how many _______ an atom has

energy levels

400

When do acid names end in -ous?

When a polyatomic ion is part of the compound and it has an -ite ending.

400

What is wrong with the following noble-gas notation? [Ar] 4s24d7

3d comes after 4s, not 4d

500

Why aren't electrons used to find the mass number of an element?

They are almost 2000 times smaller than the protons and neutrons so their masses are negligible.

500

What do Carbon-12 and Carbon-13 have in common?

C. They have the same number of protons

500

To change N to N-3 the element must 

gain three electrons

500

Name of HClO3.

Chloric acid

500

List one similarity and one difference between dipole-dipole and hydrogen bonding types of intermolecular forces.

similarity= both are found between polar molecules

difference= hydrogen bonding needs to have specific elements found in its polar molecule ( hydrogen and either nitrogen, oxygen and fluorine)