Grade 10 Recap

Question 1

Definition of valence electrons

Answer 1

Electrons in the outermost energy level

Question 2

Definition of ionic bond

Answer 2

Transfer of electrons from metal to non-metal

Question 3

Definition of covalent bond

Answer 3

Sharing of unpaired electrons between atoms that are non-metals

Question 4

Definition of metallic bond

Answer 4

Bonds between metal atoms (sea of delocalised electrons flow between positive kernals)

Question 5

Atoms in ionic bond

Answer 5

Metal and non-metal

Question 6

Atoms in covalent bond

Answer 6

Non-metal and non-metal

Question 7

Atoms in metallic bond

Answer 7

Metal and metal

Question 8

Definition of cations

Answer 8

Positively charged atom due to lost electrons

Positive ionss that are formed when the electrons from the outermost energy level are separated from the atom

Question 9

Definition of anions

Answer 9

Negatively charged atom due to gaining electrons

Negative ions that are formed when they attach to an atom to fill the outermost energy level of an atom