TEST_DE_CH_2.4_StructureOfThePeriodicTable - Nicholas Meyer | Biblioteka

Obavezno

3

Place the following groups and periods according to their location on the periodic table.

Drugi mogući odgovor:

Lanthanoid Series

Alkaline Earth Metals

Actinoid Series

Noble Gases

Halogens

Alkali Metals

1

Which of the following is true about metals?

solids, luster, brittle, conductors, medium density

mostly solids, dull, brittle, reactive, conductors

mostly gases, brittle, dull, low density, insulators

mostly solids, luster, high density, conductors

1

What are alkaline earth metals used for?

solar cells

jewelry

fireworks

insulation

1

Which of the following are properties of alkali metals?

solids, luster, malleable, conductors, reactive

mostly solids, luster, high density, conductors

mostly gases, brittle, dull, low density, insulators

mostly solids, dull, brittle, reactive, conductors

1

What are halogens often used for?

electrical conductors

thermal conductors

metal oxides

light bulbs

1

The noble gases include which of the following sets of elements?

O, S

H, He

Ar, Kr

F, Cl

1

Metalloids are generally ____________.

all solids, shiny, brittle, conductors, medium density

mostly gases, brittle, dull, low density, insulators

mostly solids, shiny, high density, conductors

mostly solids, dull, brittle, reactive, conductors

1

How many groups are there in the periodic table?

9

27

4

18

1

Which of the following is true about transition metals?

solids, soft, brittle, reactive, conductors

mostly gases, brittle, dull, low density, insulators

mostly solids, luster, high density, conductors

solids, luster, brittle, conductors, reactive

1

Which of the following is true about the actinide series?

soft, shiny, reactive

brittle, shiny, unreactive

soft, dull, unreactive

brittle, dull, unreactive

1

Element Xx reacts with chlorine to form a common compound with the formula XxCl. Element Xx is very reactive. What is element Xx?

Ra

Ta

Na

B

1

Si and Ge have which properties in common?

They are metals, have four valence electrons, and are generally unreactive.

They are non-metals, have four valence electrons, and are generally reactive.

They are semiconductors, have four valence electrons, and are generally stable.

They are metalloids, have four valence electrons, and are generally reactive.

1

Which of the following is true about alkaline earth metals?

they have one valence electron

they have two valence electrons

they have three valence electrons

they have four valence electrons

1

Ne, Ar, and Kr have which properties in common?

They are gases at STP, unreactive, and are generally monatomic

They are gases at STP, reactive, and are generally monatomic

They are gases at STP, reactive, and are generally diatomic

They are gases at STP, unreactive, and are generally diatomic

1

Which of the following elements would be most likely to be both conductive AND magnetic in nature?

F

Ni

Na

Xe

1

Matalloids have properties of what other families or elements?

metals and halogens

non-metals and halogens

metals and non-metals

alkali and alkali earth metals

1

Which of the following is true about halogens?

they have one valence electron

they have two valence electrons

they have seven valence electrons

they have eight valence electrons

1

According to the periodic table, which of the following lanthanide elements has the highest number of protons?

Ce

Lu

Dy

Eu

1

Which of the following is true about rows of the periodic table?

Atomic number increases from right to left

Atomic mass increases from left to right

Periods contain whole families

Periods contain whole groups

1

What characteristics do elements within a group share with one another?

all have similar chemical and physical properties

all exist in the same state of matter

all have the same atomic mass

all have the same number of neutrons