Flashcards in Understanding electronic struture Deck (13):
What does the atomic number show ?
Number of protons
What does the atomic mass show ?
sum of the protons and neutrons in a atom
Charge of Protons, electrons, neutrons
+1, -1 , 0
Mass of electron
Mass of proton
Mass of neutron
What is an ion ?
An atom that loss or gained an electron to get a full outer shell.
Metal and non metal
Metal loose electrons and non mental gain electrons
What does the group number tell you ?
The number of electrons in the outer shell.
What does the period show ?
The period (row) in which an element is found shows the
number of electron shells that it has.
Number of subshells
1st shell- 2 - 1s2
2nd shell -2s2 2p6 -8
3rd shell- 3s2 3p6 3d10
4th shell - 4s2 4p6 4d10 4f14
S -2 electrons
P - 6 electrons
What is equal ?
The number of protons is always equal to the number of electrons in the atomic number