Periodic table

Question 1

What is the difference between protons, electrons, and neutrons?

Answer 1

Protons are positively charged, electrons have a negative charge, and neutrons don’t have a charge

Question 2

How many valence electrons are in Alkaline Earth Metals?

Answer 2

2

Question 3

What is an Ionic bond?

Answer 3

Nonmetal + Metal

Question 4

What are valence electrons?

Answer 4

The outermost shell of the atom and they are able to interact with other atoms to form chemical bonds

Question 5

Which elements are the least reactive?

Answer 5

Noble gases

Question 6

How many valence electrons does the Nitrogen group have?

Answer 6

5

Question 7

What is the difference between stable and unstable isotopes?

Answer 7

Stable have a nuclei and are non-radioactive
Unstable have an unstable nuclei and are radioactive

Question 8

Which elements are the most reactive?

Answer 8

Alkali metals

Question 9

What bond is a covalent bond?

Answer 9

Nonmetal + Nonmetal

Question 10

The groups or columns on the periodic table organize elements with the same number of what?

Answer 10

Valence electrons

Question 11

What ions are negatively charged?

Answer 11

Anion

Question 12

What is another name for outer orbital?

Answer 12

Shell

Question 13

Which elements on the periodic table are the LEAST reactive?

Answer 13

Noble gases

Question 14

What is the heat conductivity for metals, metalloids, & nonmetals?

Answer 14

High for metals, intermediate for metalloids, and low for nonmetals

Question 15

How many valence electrons does Noble Gases have?

Answer 15

8

Question 16

How many valence electrons does an alkali metal have?

Answer 16

One

Question 17

What are characteristics of an Anion?

Answer 17

• Negatively charged
• More electrons than protons

Question 18

What are “groups”?

Answer 18

Each vertical column in a periodic table. Each element in a group has the same number of electrons in their outer orbital

Question 19

What is the electrical conductivity for metals, metalloids, and nonmetals?

Answer 19

High for metals, varies for metalloids, and low for nonmetals

Question 20

How many elements are on the periodic table?

Answer 20

118

Question 21

Who is Dmitri Mendeleev?

Answer 21

A russian chemist who formulated the periodic laws and created the original periodic table in 1869

Question 22

What are characteristics of a Cation?

Answer 22

• Positively charged
• More protons than electrons

Question 23

What ions have more electrons than protons?

Answer 23

Anion

Question 24

Which elements on the periodic table are the MOST reactive?

Answer 24

Alkali metals

Question 25

What is the ionization energy for metals, metalloids, and nonmetals?

Answer 25

Low for metals, intermediate for metalloids, and low for nonmetals

Question 26

What are "periods"?

Answer 26

Every row across in a periodic table. Each element in a period has the same number of shells

Question 27

What is the difference between a heterogenous and homogenous mixture?

Answer 27

In a heterogenous mixture, you can see the different components in them but in a homogenous mixture, you cannot

Question 28

What ions are have more protons than electrons?

Answer 28

Cation

Question 29

What is a Covalent bond?

Answer 29

Nonmetal + Nonmetal

Question 30

What is a molecule?

Answer 30

Two or more atoms bonded together. It can also consist of two atoms of the same element

Question 31

Which russian chemist formulated the periodic laws and created the original periodic table in 1869?

Answer 31

Dmitri Mendeleev

Question 32

How many valence electrons does the Oxygen group have?

Answer 32

6

Question 33

What is the universal solvent?

Answer 33

Water because it is polar

Question 34

How many protons does an iron atom have?

Answer 34

26

Question 35

How many elements does the original periodic table have?

Answer 35

28

Question 36

How many valence electrons does the Carbon group have?

Answer 36

4

Question 37

What ions are positively charged?

Answer 37

Cation

Question 38

How many valence electrons do Transition Metals have?

Answer 38

1 or 2

Question 39

What bond is an ionic bond?

Answer 39

Metal + Nonmetal

Question 40

What is a polar molecule?

Answer 40

A molecule in which one end is slightly positive, while the other is slightly negative

Question 41

How many valence electrons does the Boron group have?

Answer 41

3

Question 42

What is an Isotope?

Answer 42

A variation of the same element with a different number of neutrons in the nucleus