Periodic Table Quiz Good Luck! =] By Alex Bennett

#1 Who was credited for the creation of the first periodic table? a) Dobereiner b) Mendeleev c) Chancourtois Answer: b

#2 How many groups (columns) are there on the periodic table? a) 18 b) 11 c) 7 Answer: a

#3 How many families in total make up the periodic table? a) 9 b) 11 c) 8 Answer: b

#4 How are elements ordered on the periodic table? a) alphabetically b) by increasing atomic number c) by increasing atomic mass Answer: b

#5 What is atomic mass? a)The mass of an atom b)The amount of atoms that make up one gram c)How many protons the atom contains Answer: a

#6 Where is the atomic mass located? a)b) c) Answer: c

#7 How many periods (rows) are on the periodic table? a)18 b)7 c)5 Answer: b

#8 How many elements are known today? a)117 b)115 c)112 Answer: all correct* *there were many different answers to this question while researching

#9 Are there always an equal number of protons and electrons in an atom? a)No b)Yes Answer: b If there is not, it is called an ion.

#10 What is the most common element? a)Carbon b)Oxygen c)Hydrogen Answer: c

#11 What is an element? a)A substance that is made entirely from one type of atom b)Any substance that contains some the atoms on the periodic table c)A substance which contains two or more types of atoms Answer: a

#12 Are all elements natural? a)Yes b)No Answer: b Some elements have been created.

#13 What makes noble gases special? a)Can conduct heat and electricity well b)Extremely reactive c)They all contain 7 electrons on their outer shell Answer: c

#14 Elements in the same families have similar chemical and physical properties. Why? a)Same number of valance electrons b)It turned out that way when the Periodic Table was created c)They all form different ions Answer: a

#15 What happens to the reactivity of elements as you move from the left to the right? a)Decreases b)Increases c)Random Answer: a Noble gases are towards the right.

#16 The elements that belong to the non- metal family are found where on the Periodic Table? a)Far left b)Bottom c)Top right Answer: c

#17 An equal number of protons and neutrons in an atom usually results in an atom that is…? a)… radioactive b)… stable c)… unable to bond with other atoms Answer: b

#18 The first element in the Periodic Table is…? a)Carbon b)Hydrogen c)Helium Answer: b The atomic number is 1.

#19 What is the difference between an atom and an element? a)An element is a basic substance while an atom is the smallest part of an element b)Elements contain more than one type of atom and atoms are singular c)Elements can be split and atoms can’t be Answer: a

#20 When was the latest element created/discovered? a)1998 b)1987 c)2006 Answer: c Ununoctium by Y. T. Oganessian