answer each
QUESTION 1
Mendeleev organized his periodic table by ______ in the same way that today’s periodic table is organized by atomic number.
OPTIONS
protons
neutrons
atomic mass
atomic number
QUESTION 2
The modern periodic table is different from Mendeleev’s in several ways. In which way are the two tables the same?
OPTIONS
The inert gases occupy one column of the table.
Elements are arranged by increasing atomic number.
There are blank spots in the middle for undiscovered elements.
Elements are put into columns based on similar chemical properties.
QUESTION 3
Mendeleev’s Periodic Table lacked -
OPTIONS
noble gases.
chemical property trends.
neutrons.
atomic mass.
QUESTION 4
How does the periodic table used today classify elements?
OPTIONS
According to chemical properties alone.
According to atomic number.
According to atomic mass.
According to radioactive properties.
QUESTION 1: atomic number
QUESTION 2: Elements are put into columns based on similar chemical properties.
QUESTION 3: noble gases
QUESTION 4: According to atomic number