Chapter 1:Atoms, elements and the periodic table

Question 1

1A: Atoms and elements

Smallest unit of matter used in VCE chemistr

Answer 1

Atom

Question 2

1A: Atoms and elements

Number of protons in the nucleus of an atom

Answer 2

Atomic number

Question 3

1A: Atoms and elements

Abbreviation used to represent a chemical element

Answer 3

Chemical symbol

Question 4

1A: Atoms and elements

Two or more atoms of different elements bonded together

Answer 4

Compound

Question 5

1A: Atoms and elements

Negatively charged particle that exists outside the nucleus of an atom

Answer 5

Electron

Question 6

1A: Atoms and elements

Pure substance containing only a single type of atom

Answer 6

Element

Question 7

1A: Atoms and elements

Atom that has lost or gained electrons to become a charged particle

Answer 7

Ion

Question 8

1A: Atoms and elements

Variants of an element which have the same atomic number but a different number of neutrons in their nuclei

Answer 8

Isotope

Question 9

1A: Atoms and elements

Mass of an atom, equal to the sum of protons and neutrons

Answer 9

Mass number

Question 10

1A: Atoms and elements

When two or more non-metal atoms bond by sharing electrons

Answer 10

Molecule

Question 11

1A: Atoms and elements

Neutral particle inside the nucleus of an atom

Answer 11

Neutron

Question 12

1A: Atoms and elements

Region at the centre of an atom that contains protons and neutrons

Answer 12

Nucleus

Question 13

1A: Atoms and elements

Table of chemical elements in which elements are arranged in order of increasing atomic number

Answer 13

Periodic table

Question 14

1A: Atoms and elements

Positively charged particle inside the nucleus of an atom

Answer 14

Proton

Question 15

1A: Atoms and elements

Particle that exists inside the atom

Answer 15

Subatomic particle

Question 16

1B: Periodic table- Part 1

Rule that states subshells are filled by electrons from the lowest to the highest energy leve

Answer 16

Aufbau principle

Question 17

1B: Periodic table- Part 1

Assortment of elements into discrete categories based on which subshell their valence electrons are found in

Answer 17

Blocks

Question 18

1B: Periodic table- Part 1

Arrangement of electrons in shells and/or subshells

Answer 18

Electron configuration

Question 19

1B: Periodic table- Part 1

Orbits containing different levels of energy, around the nucleus of an atom where electrons are found according to the Bohr and Schrodinger models

Answer 19

Energy shells/ levels

Question 20

1B: Periodic table- Part 1

Columns in the periodic table

Answer 20

Groups

Question 21

1B: Periodic table- Part 1

Regions with the highest probability of finding electrons

Answer 21

Orbitals

Question 22

1B: Periodic table- Part 1

Rule that states an orbital can’t hold more than 2 electrons

Answer 22

Pauli exclusion principle

Question 23

1B: Periodic table- Part 1

Rows in the periodic table

Answer 23

Periods

Question 24

1B: Periodic table- Part 1

Characteristics of elements in a period

Answer 24

Periodicity

Question 25

# 1B: Periodic table- Part 1 Outermost energy shell

Answer 25

Valence shell

Question 26

# 1B: Periodic table- Part 1 Electrons in the outermost shell of an atom

Answer 26

Valence electrons

Question 27

# 1C:Periodic Table - Part 2 Attractive force between the positive nucleus and valence electrons, measured as the difference in the number of protons and inner electrons

Answer 27

Core charge

Question 28

# 1C:Periodic Table - Part 2 How strongly an atom attracts electrons towards itself

Answer 28

Electronegativity

Question 29

# 1C:Periodic Table - Part 2 Energy required to remove the first valence electron from an atom

Answer 29

First ionisation energy

Question 30

# 1C:Periodic Table - Part 2 Atom that has lost or gained electrons to become a charged particle

Answer 30

Ion

Question 31

# 1C:Periodic Table - Part 2 Chemical properties associated with metals

Answer 31

Metallic character

Question 32

# 1C:Periodic Table - Part 2 Elements which possess properties that are in-between those of metals and non-metals

Answer 32

Metalloids

Question 33

# 1C:Periodic Table - Part 2 Unreactive gases found in group 18 of the periodic table

Answer 33

Noble gases

Question 34

# 1C:Periodic Table - Part 2 General principle which states that atoms like to have 8 electrons in theirvalence shell for stability

Answer 34

Octet rule

Question 35

# 1C:Periodic Table - Part 2 Tendency of atoms to undergo a chemical reaction

Answer 35

Reactivity

Question 36

# 1D: Recycling Critical Elements Elements that are vital and considered in short supply unless they are recycled as sources could become depleted in 50–100 years

Answer 36

Critical elements

Question 37

# 1D: Recycling Critical Elements Elements that have a limited supply left on Earth

Answer 37

Endangered

Question 38

# 1D: Recycling Critical Elements 15 naturally occurring metallic chemical elements, whose atomic numbers fall between 57 (Lanthanum) and 71 (Lutetium)

Answer 38

Lanthanoids

Question 39

# 1D: Recycling Critical Elements Converting a waste product into a reusable product

Answer 39

Recycled

Question 40

# 1D: Recycling Critical Elements Can be produced at a rate that is greater than consumption without compromising future generations

Answer 40

Sustainable

Question 41

# 1D: Recycling Critical Elements Elements that occupy groups 3 to 12 on the periodic table

Answer 41

Transition metals