Periodic Table and periodicity in properties

Question 1

Which group on the periodic table is the most reactive?

Accepted Answer

Alkali metals

Question 2

This element has 3 energy levels or orbitals of electrons.

Accepted Answer

Mg (Magnesium)

Question 3

Which accurately describes nonmetals?

Accepted Answer

Poor conductors of electricity

Question 4

Which pair of elements would have similar properties due to the position in the periodic table?

Accepted Answer

Copper (Cu), Gold (Au)

Question 5

Most elements on the periodic table are classified as __________.

Accepted Answer

Metals

Question 6

Each horizontal row on the periodic table is called what?

Accepted Answer

Period

Question 7

How many periods are there in the periodic table?

Accepted Answer

7

Question 8

Which group of elements on the periodic table are all gases at room temperature?

Accepted Answer

Noble gases

Question 9

Groups on the periodic table are arranged

Accepted Answer

Vertically

Question 10

This group is found in the valley and forms various positive ions.

Accepted Answer

Transition metals

Question 11

How are elements in the periodic table organized?

Accepted Answer

Based on physical and chemical properties

Question 12

Which group of elements is inert or nonreactive?

Accepted Answer

Noble Gases

Question 13

Which properties most accurately describe the element silicon (Si)?

Accepted Answer

Conducts electricity and is brittle

Question 14

Which group of elements has 2 valence electrons?

Accepted Answer

Alkaline-earth metals

Question 15

Which group includes some of the most metal like elements nickel, iron, and copper?

Accepted Answer

Transition metals

Questions 15