[на 100 баллов] Тест 4. Elements (ТПУ) (Решение → 21032)

Тест 4. Elements

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Вопрос 1

The majority of the elements in the periodic table are

Выберите один ответ:

a.metals

b.metalloids

c.nonmetals

Вопрос 2

The horizontal rows of the periodic table are known as

Выберите один ответ:

a.series

b.groups

c.periods

Вопрос 3

The vertical columns of the periodic table are known as

Выберите один ответ:

a.series

b.groups

c.periods

Вопрос 4

The series of elements that contains mostly man‐made elements:

Выберите один ответ:

a.transition metals

b.lanthanides

c.actinides

Вопрос 5

The transition elements are located

Выберите один ответ:

a.on the right side of the periodic table

central section of the periodic table

c.on the left side of the periodic table

Вопрос 6

Elements that have properties of both metals and nonmetals:

Выберите один ответ:

a.inert gases

b.transition metals

c.metalloids

Вопрос 7

An element's atomic number is always aНет

Выберите один ответ:

a.decimal number

b.imaginary number

c.integer

Вопрос 8

The stair‐step line running diagonally from aluminum to polonium divides the

Выберите один ответ:

a.metals and nonmetals

b.transition metals and metals

c.lanthanides and actinides

Вопрос 9

The atomic number of phosphorus (P) is

Выберите один ответ:

a.15

b.30.97

c.16.00

Вопрос 10

The element with atomic number 12 is

Выберите один ответ:

a.carbon

b.magnesium

c.manganese

Вопрос 11

In general, metals

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a.have high electrical and thermal conductivities

b.are brittle and dull in appearance

c.are gases at room temperature

Вопрос 12

In general, nonmetals

Выберите один ответ:

a.are liquids at room temperature

b.have low electrical and thermal conductivities

c.have high electrical and thermal conductivities

Вопрос 13

MOST of the elements were discovered

Выберите один ответ:

a.over 1 million years ago

b.over 1,000 years ago

c.during the last 300 years

Вопрос 14

The first list of elements and their characteristics was written by

Выберите один ответ:

a.Antoine Lavoisier

b.Dmitri Mendeleev

c.John Dalton

Вопрос 15

Congeners are elements that have similar properties and are found in the same

Выберите один ответ:

a.table

b.period

Вопрос 16

A sample of an unknown element is found in a laboratory cabinet. Upon inspection, it is observed that the element has a dull surface, shatters into many pieces when hit with a hammer, and is a poor conductor of both heat and electricity. It is concluded that this element would be classified as a

Выберите один ответ:

a.metalloid

b.nonmetal

c.metal

Вопрос 17

The modern periodic table contains approximately

Выберите один ответ:

a.33 elements

b.112 elements

c.109 elements

Вопрос 18

Elements that are malleable are

Выберите один ответ:

a.halogens

b.metals

c.noble gases

Вопрос 19

The alkali metals are located _____ of the periodic table

Выберите один ответ:

the middle

the far left column

the far right column

Вопрос 20

The most common physical state of the elements is

Выберите один ответ:

a.gaseous

b.solid

c.liquid