2.3 Navigating the Periodic Table

Question 1

In 1872 this scientist published what is widely considered the forerunner of the modern periodic table of elements.

Answer 1

Dmitri Mendeleev

Question 2

How was Dmitri Mendeleev’s periodic table organized?

Answer 2

Mendeleev arranged the elements in his periodic table in order of increasing atomic mass.

Question 3

Horizontal rows of the periodic table

Answer 3

Periods

Question 4

Vertical rows/ columns of the periodic table

Answer 4

Groups or Familes

Question 5

Elements that are typically shiny, malleable, ductile solids that conduct heat and electricity well and tend to form positive ions

Answer 5

Metals

Question 6

Elements with properties opposite those of metals, including poor conductivity of heat and electricity.

Answer 6

Nonmetals

Question 7

Elements that tend to have some properties of metals and some properties of nonmetals.

Answer 7

Metalloids

Question 8

Groups 1, 2, and 12-18 are referred collectively as this.

Answer 8

Main Group Elements or Representative Elements

Question 9

The elements in groups 3-12 are called this.

Answer 9

Transition Metals

Question 10

Group 18 elements are referred to as this.

Answer 10

Noble Gases

Question 11

A positively charged ion

Answer 11

Cation

Question 12

A negatively charged ion

Answer 12

Anion

Question 13

Spontaneously emit high-energy radiation and particles, then are transformed into other nuclides.

Answer 13

Radionuclides

Question 14

The elements in group 1 are referred to as this.

Answer 14

Alkali Metals

Question 15

The elements in group 2 are referred to as this.

Answer 15

Alkaline Earth Metals

Question 16

The elements in group 16 are referred to as this.

Answer 16

Chalcogens

Question 17

The elements in group 17 are referred to as this.

Answer 17

Halogens

Question 18

Elements in the 2A group of the periodic table will usually form an ion with a charge of _____.

Answer 18

2+

Question 19

Elements in the 1A group of the periodic table will usually form an ion with a charge of _____.

Answer 19

1+

Question 20

Elements in the 3B group of the periodic table will usually form an ion with a charge of _____.

Answer 20

3+

Question 21

Elements in the 4B group of the periodic table will usually form an ion with a charge of _____.

Answer 21

4+

Question 22

Elements in the 1B (11) group of the periodic table will usually form an ion with a charge of _____.

Answer 22

1+

Question 23

Elements in the 2B (12) group of the periodic table will usually form an ion with a charge of _____.

Answer 23

2+

Question 24

Elements in the 3A (13) group of the periodic table will usually form an ion with a charge of _____.

Answer 24

3+

Question 25

Elements in the 5A (15) group of the periodic table will usually form an ion with a charge of _____.

Answer 25

3-

Question 26

Elements in the 6A (16) group of the periodic table will usually form an ion with a charge of _____.

Answer 26

2-

Question 27

Elements in the 7A (17) group of the periodic table will usually form an ion with a charge of _____.

Answer 27

1-

Question 28

An atom can either gain electrons to complete its octet or lose electrons to empty its outer shell to become a stable ion. For the element K how many electrons will it need to gain or lose to become stable?

Answer 28

Lose 1 Electron

Question 29

An atom can either gain electrons to complete its octet or lose electrons to empty its outer shell to become a stable ion. For the element O, how many electrons will it need to gain or lose to become stable?

Answer 29

Gain 2 electrons

Question 30

An atom can either gain electrons to complete its octet or lose electrons to empty its outer shell to become a stable ion. For the element Al, how many electrons will it need to gain or lose to become stable?

Answer 30

Lose 3 Electrons

Question 31

Identify the ion(s) with the same number of electrons as an atom of neon.
(Please select all answers that apply.)
Choose one or more:

A.Li with a +1 charge

B.O with a -2 charge

C.N with a +3 charge

D.Na with a +1 charge

Answer 31

B.O with a -2 charge

D.Na with a +1 charge

Since Neon has 10 electrons. (7 plus the 3- charge = 10 electrons) O with an additional 2 electrons will equal 10 and Na losing 2 electrons will equal 10 as well.

Question 32

The third-row metalloid.

Answer 32

Si, silicon

Question 33

The group 16 element with the smallest atomic number.

Answer 33

O, Oxygen

Question 34

The group 13 element in the third row (period).

Answer 34

Al, Aluminum

Question 35

Listed elements according to atomic number rather than atomic mass.

Answer 35

Henry Moseley

Question 36

The principle that chemical properties of the elements are periodic functions of their atomic numbers.

Answer 36

The Periodic Law

Question 37

Can be described as Ductile, Malleable, Conductors of heat and electricity, shiny and donates electrons.

Answer 37

Metals

Question 38

Can be described as Brittle, Nonconductors, Dull and accepts electrons.

Answer 38

Non-Metals

Question 39

A main-group metal tends to _____ electrons, forming a _____ with the same number of electrons as the nearest noble gas,

Answer 39

Lose & Cation

Question 40

A main-group nonmetal tends to _____ electrons, forming an _____ with the same number of electrons as the nearest noble gas.

Answer 40

Gain & anion