Introduction to atoms and bonding (Module 3 Lecture 1)

Question 1

Where is almost all of the mass in an atom located?

Answer 1

Centre (Nucleus)

Question 2

Which 2 things does the nucleus contain?

Answer 2

Positively charged protons
Electrically neutral neurons

Question 3

What do the negatively charged electrons do?

Answer 3

Circulate around the nucleus

Question 4

What do the electrons exist in?

Answer 4

Orbitals of defined energies

Question 5

What are the 3 orbitals of defined energies that the electrons exist in?

Answer 5

s orbital
p orbitals
d orbitals

Question 6

Acronym for the electron configuration of an atom

Answer 6

Susie sits perfectly supposedly presuming shes dead poor susie

Question 7

Numbers for the electron configuration of an atom

Answer 7

1 2 2 3 3 4 3 4 5

Question 8

How many electrons can an s orbital hold?

Answer 8

2

Question 9

How many electrons can a p orbital hold?

Answer 9

6

Question 10

How many electrons can a d orbital hold?

Answer 10

10

Question 11

When chemical bonds form between atoms, which electrons are involved?

Answer 11

The outermost (valence) electrons

Question 12

What is so special about the outermost (valence electrons)?

Answer 12

These are the ones in the orbitals with the highest principle quantum number

Question 13

This bond is formed when one electron on each atom is shared with the other

Answer 13

Covalent bond

Question 14

A way of accounting for all the valence electrons in a molecule

Answer 14

Lewis structures