The Atom

Question 1

Element

Answer 1

Substance made from only one type of atom

Question 2

Compound

Answer 2

Combination of atoms together to form a new substance

Question 3

Nucleons

Answer 3

Collective name given to the total number of particles present in the nucleus of an atom

Question 4

Atomic number

Answer 4

The total number of protons that are found in the nucleus of an atom

Question 5

Mass number

Answer 5

Collective some of the number of protons and neutrons that are present in the nucleus of an atom.

Question 6

Isotope

Answer 6

These are atoms of any element that have the same number of protons but different numbers of neutrons in the nuclei

Question 7

Energy level

Answer 7

Is in the area of probability emerging electron would be found orbiting the nucleus of an atom and that these electrons would have energy typical of that region of probability

Question 8

Orbitals

Answer 8

These are areas with in an energy level in which electrons are allocated the orbitals are very slightly in energy with the S orbital or have the lowest energy within the devil then the P orbital in the D orbital followed by the f orbital

Question 9

Valence electrons

Answer 9

Number of electrons that are found in the highest energy level of an atom

Question 10

Core electrons

Answer 10

The electrons that are present in that low energy levels beneath the highest valence energy level. These electrons will ensure that lower energy levels are full

Question 11

Period

Answer 11

The number of the row which represents the highest energy level in which the valence electrons for an atom of a Particular element will be found

Question 12

Valency

Answer 12

The number of electrons in an atom must either do use all game to achieve fold outermost energy level and hence attain its most stable energy state

Question 13

Scientific model

Answer 13

This is a theoretically developed representation and understanding that describes what is happening at the microscopic atomic level

Question 14

Bonding pair

Answer 14

This is a shared pair of electrons that is common to both atoms that are involved in the chemical bond and I shared equally between both atom in that bond

Question 15

Molecule/covalent

Answer 15

This is a combination of the non-metal atoms which are bonded covalently through electron sharing as a result of orbital overlap of the outer most orbital Forming bonding pairs of electrons

Question 16

Bond lenth

Answer 16

The distance between the two nuclei of the atoms that are present when a covalent bond is formed

Question 17

Ionic bond

Answer 17

This is the bond that is formed when electron transfer takes place between a metal and non-metal atoms causing the formation of ions and creating an attractive force which holds the ions in place

Question 18

Crystal lattice

Answer 18

This is the ordered and structure and arrangement of particles in a solid structure

Question 19

Metallic bonding

Answer 19

The bonding in the metallic crystal lattice is this regarded as an orderly arrangement of positive metal ion is bound together by a sea of labile delocalised electrons which are found between the positive ions