Chemistry 1
Chemistry 2
Chemistry 3
Chemistry 4
Chemistry 5
100

What number do you use to find the number of protons?

atomic number

100

What are the 3 main states of matter?

Solid, liquid, gas

100

What is the 25th element called?

Manganese or Mn



100

C-14 has how many neutrons?

8

100

What is the formula for density?

Density = Mass/Volume (Mass over volume)

200

How many periods are shown on the periodic table?

7

200

What is the atomic number of argon (Ar)?

18

200

A chemical bond between two nonmetals is called a


  covalent bond.  

200

A positive ion is known as a?

Cation

200

What type of elements are the most abundant on the periodic table?

Metal

300

What are the elements in Group 18 called ?

Noble Gases

300

How many grups are on the periodic table?

18

300

Name the scientist who first include the nucleus in its atomic model

Rutherford

300

What are the elements in Group 1 called ?

Alkali Metals

300

Name all 3 subatomic particles.

Protons Neutrons Electrons

500

How are ions formed?

By losing or gaining electrons

500

10^-9

nano

500

10^3

kilo

500

The Chloride ion (Cl-) has  _____e-

18 e-

500

The sum of protons and neutrons in the nucleus of an atom is known as the _________

Mass number

600

The substances mixed to produce a chemical reaction are called

Reactants

600

Which is the correct formula for the compound formed between lithium and sulfur?


  Li2S 

600

name this compound CrO4^2- 


chromate



600

Elements with the same number of protons but different number of neutrons 

Isotope

600

Give the formula for Hydrogen Sulfate 

HSO4-

700

A covalent bond is a sharing of

Electrons 

700

Which is the correct formula for the compound chromium (III) oxide?


 Cr2O3                     

700

Name the compound CCl4?

  carbon tetrachloride               

700

What is the formula for cobalt (II) iodine?


CoI2

700

Lithium, sodium, potassium, rubidium, caesium and francium belong to the family of  ______________

Alkali metal

800

name this compound C2H3O2 

Acetate

800

Given the number of protons, neutrons, and electrons, what would be the mass number and the charge number of each isotope?  What would be the atomic number?  The identity of the element? 

g)  7 protons, 7 neutrons, 10 electrons

Mass number is 14, charge is –3.  Atomic number is 7, identity is nitrogen (N).

800

How many molecules of H2O are in 0.0643 grams of H2O?


0.0643 grams of H2O is equal to 0.00357 moles, which is 2.15 x 10^21 molecules

800

How many moles of Ca3(PO4)2 are in 57.82 grams?

0.1864 moles

800

A type of elements with properties between metals and non metals

Semimetals