Atoms and shells Flashcards
What is Atomic number
The number of protons
how do you calculate mass number
Protons + neutrons
Mass of charge of proton, neutron, and electron
Charge Proton +1 Neutron 0 Electron -1
Mass Proton 1 Neutron 1 Electron 1/2000
Electron shells and the maximum number of electrons
1 shell holds up to 2 Electrons
2 shell holds up to 8 Electrons
3 shell holds up to 8 Electrons
group 1 - trends and properties
melting point - decreases as you go down the group
boiling point - decreases as you go down the group
group 7 - trends and properties
melting point - increases as you go down the group
boiling point - increases as you go down the group
group 0 - trends in properties
melting point - increases as you go down the group
boiling point - increases as you go down the group
group 1 - trend in reactivity
reactivity increases as you go down the group
description of group 1 reaction with water
when placed in water the metal then releases heat, hydrogen gas and the corresponding metal hydroxide
