Ch 6

Question 1

How many elements identified by the year 1700

Answer 1

13

Question 2

What did chemists use to sort elements into groups

Answer 2

The properties of elements.

Question 3

Who was Dmitri Mendeleev

Answer 3

Russian scientist who published the first periodic table of elements

Question 4

What property did Mendeleev use to organize the elements into a periodic table

Answer 4

He used atomic mass

Question 5

Mendeleev used his periodic table to predict the properties of undiscovered elements

Answer 5

True

Question 6

How are elements arranged in the modern period table

Answer 6

Atomic number

Question 7

Periodic law

Answer 7

States that when elements are arranged in order of increasing atomic number, there is a periodic repetition of physical and chemical properties.

Question 8

Which property is not a general property of metals. Ductile, malleable, high luster, and poor conductor of heat.

Answer 8

Poor conductor of heat.

Question 9

True or False: The variation in properties among metals is greater than the variation in properties among non metals

Answer 9

False

Question 10

Pending the conditions, a metalloid can behave like a…

Answer 10

Metal or nonmetal.