CI Investigation 2 Question Preview (ID: 45628)


Review Of The Periodic Table. TEACHERS: click here for quick copy question ID numbers.

Which formula represents a substance that is an element?
a) Co
b) CO2
c) CO
d) NH3

How did Mendeleev organize the periodic table?
a) by an atom's atomic number
b) by an atom's symbol
c) by an atom's atomic mass
d) by an atom's state of matter

Today's modern periodic table is organized by what?
a) an atom's atomic number
b) an atom's atomic mass
c) at atom's atomic symbol
d) an atom's state of matter

Which element makes up about 90% of the known universe?
a) carbon
b) oxygen
c) hydrogen
d) helium

In a periodic table, a set of properties repeats from
a) group to group
b) element to element
c) column to column
d) row to row

The periodic table is composed of
a) compounds
b) mixtures
c) products
d) elements

The majority of the periodic table is composed of
a) gases
b) nonmetals
c) semi-conductors
d) metals

Which list of elements contains only metals?
a) carbon, iodine, tin
b) helium, iron, copper
c) tin, copper, cesium
d) iodine, carbon, argon

Copper, gold and iron all have similar characteristics. They are shiny and conduct electricity. They can be hammered into a shape and drawn into wire. What classification of elements includes copper, gold and iron?
a) gas
b) metal
c) nonmetal
d) metalloid

Atoms of different elements can join together in different arrangements to produce a variety of substances that are found on Earth. There are more than 100 known elements. Which of the following best describes these elements?
a) Most of the elements are metals.
b) Most of these elements are metalloids.
c) Most of these elements are nonmetals.
d) Most of these elements are noble gases.

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