Mendeleev arranged families of elements __________ in his periodic table.
Lanthanides are __________.
|A)||similar to each other|
|C)||easily confused with other metals|
|D)||different from each other|
From left to right, what are the order of zones on a periodic table?
|A)||metalloids, metals, and nonmetals|
|B)||metals, nonmetals, and metalloids|
|C)||metals, metalloids, and nonmetals|
|D)||nonmetals, metalloids, and metals|
Which elements are essential for life?
|A)||uranium and plutonium|
|B)||nitrogen and phosphorus|
|C)||gold and silver|
|D)||mercury and lead|
According to the periodic table, iodine will have similar chemical and physical properties to which element?
Mendeleev arranged the elements in his periodic table by increasing __________.
Which gas is a noble gas?
What is a common property of transition metals?
|A)||low boiling point|
|D)||high melting point|
Elements used in dentistry include __________.
|A)||lead, silver, and mercury|
|B)||silver, gold, and platinum|
|C)||fluorine, chlorine, and bromine|
|D)||silver, fluorine, and mercury|
Alkali earth metals are __________ than alkali metals.
|A)||just as reactive|
The __________ contains the name, atomic number, symbol, and atomic mass of an element.
Which element is a gas at room temperature?
Moseley arranged his periodic table by increasing __________.
A(n) __________ of elements on the modern periodic table contains elements with similar chemical and physical properties.
The iron triad has __________ properties.
A substance that can make something happen faster but is not changed itself is a __________.
Noble gases __________ react with other elements.
All actinides are __________.
What is a common property of nonmetals?
Halogens form __________ when mixed with alkali metals.