IScience - Chapter 10 Test Flashcards
(25 cards)
The alkali metals ___ with other elements.
Are reactive and bond easily
A metal is often shiny, but is a ___ conductor of electricity.
Good
Halogens frequently occur in nature as ___.
Compounds
Elements on the far right of the periodic table are classified as ___.
Nonmetals
Approximately how many elements are metals?
3/4 of the periodic table
The place of an element in the modern periodic table is determined by its ___.
Atomic number
A single horizontal portion of the periodic table is called ___.
A period
Which elements have properties of both metals and nonmetals?
Metalloids
The elements in the second column from the left edge of the periodic table are the ___.
Alkaline earth metals
Main-block transition metals, such as iron, make good building materials for all of the following reasons EXCEPT \_\_\_. A) High density B) Insulation C) Strength D) Resistance to corrosion
B) Insulation
Which of the following does NOT describe an alkali metal such as lithium? A) Hard to cut B) React quickly with oxygen C) Silvery appearance D) Low density
A) Hard to cut
Which of the following is NOT a property of all metals? A) Conduct electricity B) Shiny C) Does not conduct heat D) Malleable when solid
C) Does not conduct heat
All of the following objects conduct electricity. which is NOT a metal? A) Lead B) Carbon C) Iron D) Vanadium
B) Carbon
Which general statement does NOT apply to metals?
A) Most metals are ductile.
B) Most metals are malleable.
C) Most metals are brittle.
D) Most metals are good conductors of electric current.
C) Most metals are brittle
Which of the following properties is NOT common to alkaline earth metals? A) Soft and silvery B) Low density C) React more quickly than alkali metals D) Do not occur naturally
C) React more quickly than alkali metals
Which of the following is NOT one of the main elements in the human body? A) Oxygen B) Lead C) Carbon D) Hydrogen
B) Lead
What is different about noble gases?
They never form compounds in nature.
Helium and most nonmetals are found in which area of the periodic table?
On the right side
A halogen is found in group ___.
17
A halogen is an element that can react with a metal and form ___.
Salt
Halogens are only found in nature as ___.
Compounds
What is the most common element in the universe?
Hydrogen
Which elements are located between the metals and nonmetals on the periodic table?
Metalloids
What is the most abundant METALLOID in the universe?
Silicon
