Formative Quiz on Periodic Table

Question 1

What are the ten most abundant elements in the Earth’s crust?

Answer 1

Oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium, titanium, and hydrogen

Question 2

what is a isotope?

Answer 2

Atoms that have more or less neutrons than protons

Question 3

facts about metals

Answer 3

Metals are good conductors of heat and electricity, Metals are shiny, Metals are ductile (can be stretched into then wires), Metals are malleable (can be pounded into thin sheets), A chemical property of metal is its reaction with water which results in corrosion

Question 4

facts about semi-metals or metalloids

Answer 4

Metalloids (metal-like) have properties of both metals and non-metals, They are solids that can be shiny or dull, They conduct heat and electricity better than non-metals but not as well as metals, They are ductile and malleable

Question 5

Facts about non-metals

Answer 5

Non-metals are poor conductors of heat and electricity, Non-metals are not ductile (stretched) or malleable (pounded), Solid non-metals are brittle and break easily, They are dull, Many non-metals are gases

Question 6

facts about groups/families on the periodic table

Answer 6

Columns of elements are called groups or families, Elements in each family have similar but not identical properties, For example, lithium (Li), sodium (Na), potassium (K), and other members of family IA are all soft, white, shiny metals, All elements in a family have the same number of valence electrons

Question 7

Facts about periods on the periodic table

Answer 7

Each horizontal row of elements is called a period, The elements in a period are not alike in properties, In fact, the properties change greatly across even given now, The first element in a period is always an extremely active solid. The last element in a period, is always an inactive gas

Question 8

facts about alkali metals

Answer 8

The alkali family is found in the first column of the periodic table, Atoms of the alkali metals have a single electron in their outermost level in other words, 1 valence electron, They are shiny, have the consistency of clay, and are easily cut with a knife, They are the most reactive metals, They react violently with water, Alkali metals are never found as free elements in nature. They are always bonded with another element

Question 9

facts about alkaline earth metals

Answer 9

They are never found uncombined in nature, They have two valence electrons, Alkaline earth metals include magnesium and calcium, among together

Question 10

facts about transition metals

Answer 10

Transition elements include those elements include those elements in the B families, These are the metals you are probably most familiar: copper, tin, zinc, iron, nickel, gold, and silver, They are good conductors of heat and electricity, The compounds of transition metals are usually brightly colored and are often used to color paints, Transition elements have 1 or 2 valence electrons, which they lose when they form bonds with other atoms. Some transition elements can lose electrons in their next-to-outermost level.

Question 11

facts about boron family

Answer 11

The boron family is names after the first element in the family, Atoms in this family have 3 valence electrons, This family includes a metalloid (boron), and the rest are metals, This family includes the most abundant metal in the earth’s crust (aluminum)

Question 12

facts about carbon family

Answer 12

Atoms of this family have 4 valence electrons, This family includes a non-metal (carbon), metalloids, and, The element carbon is called the “basis of life”. There is an entire branch devoted to carbon compounds called organic chemistry

Question 13

facts about nitrogen family

Answer 13

The nitrogen family is names after the element that makes up 78% of out atmosphere, This family includes non-metals, metalloids, and metals, Atoms in the nitrogen family have 5 valence electrons. They tend to share electrons when they bond, Other elements in this family are phosphorus, arsenic, antimony, and bismuth.

Question 14

facts about oxygen family

Answer 14

Atoms of this family have 6 valence electrons, Most elements in this family share electrons with forming compounds, Oxygen is the most abundant element in the earth’s crust. It is extremely active and combines with almost all elements

Question 15

facts about halogen family

Answer 15

The elements in this family are fluorine, chlorine, bromine, iodine, and astatine, Halogens have 7 valence electrons, which explains why htye are the most active non-metals. They are never found free in nature., Halogen atoms only need to gain 1 electron to fill their outermost energy level, They react with alkali metals to form salts

Question 16

facts about noble gases

Answer 16

Noble Gases are colorless gases that are extremely un-reactive, One important property of the noble gases is their inactivity. They are inactive because their outermost energy level is full, Because they do not readily combine with other elements to form compounds, the noble gases are called inert, The family of noble gases includes helium, neon, argon, krypton, xenon, and radon, All the noble gases are found in small amounts in the earth’s atmosphere.

Question 17

facts about rare earth elements

Answer 17

The thirty rare earth elements are composed of the lanthanide and actinide series, One element of the lanthanide series and most of the elements in the actinide series are called trans-uranium, which means synthetic or man-made