chemistry - electrons and bonding

ionic bonding

strong electrostatic attraction between oppositely charged ions

covalent bonding

strong electrostatic attraction between a shared pair of electrons and 2 nuclei

dative covalent bond

when both of the bonding electrons come from the same atom

average bond enthalpy

helps us to measure how strong a covalent bond is. the larger the bond enthalpy the stronger the bond

orbital

regions of space in which theres a probability of finding an electron

a solid

ions vibrate about fixed positions in a regular lattice

a liquid

ions move around each other, still close but irregular

a gas

ions move rapidly and randomly and are far apart

how many electrons in the s orbital

2

how many electrons in the s subshell

2

how many electrons in the p orbital

2

how many electrons in the p subshell

6

aluminium chloride

covalent bonding

how many electrons per orbital

2

square =

orbital

lots of squares

sub shell

what comes first 3d or 4s

3d

curious crisis

cu and cr

the second electron in 4s moves to have 5 in 3rd because stability is associated with half filled orbitals

how many electrons in the d orbital

2

how many electrons in the d subshell

10

electron configuration order

1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p