A1 Atomic Structure + Bonding
No description yet. This curated deck is ready for daily study.
Card preview (24)
Define an isotope
• Atoms of the same element • With different numbers of neutrons and different masses
Define Relative Atomic Mass
• The weighted mean mass of an atom of an element • Compared to 1/12th the mass of an atom of Carbon-12
Define Relative Isotopic Mass
• The mass of an atom of an isotope • Compared to 1/12th the mass of an atom of Carbon-12
Define Weighted Mean Mass
• The mean mass • Taking into account the relative abundancies of the isotopes
What does the atomic number of an atom tell you
Number of protons
What does the mass number of an atom tell you
The number of neutrons and protons
How do you calculate the RFM given abundances and relative atomic masses
On a mass spectrometer, what do the peaks indicate
Isotopes
What happens to all elements when in a mass spectrometer
Develop a 1+ charge
How to calculate the RFM from a mass spectrometer, where the relative abundances don’t equal 100
What peaks should be shown on mass spectrometers with diatomic elements
All possible combinations of diatomic molecules, and all monotomic atoms
How many electrons occupy the first shell
2
How many electrons occupy the 2nd shell
8
How many electrons occupy the 3rd shell
18
How many electrons occupy the 4th shell
32
How many orbitals in s subshell
1
How many orbitals in p subshell
3
How many orbitals in d subshell
5
How many electrons in ANY orbital
2
Define an orbital
• A 3D reigon of space around the nucleus, that can hold up to 2 electrons • With opposite spins
What is the shape of an s orbital
What is the shape of a p orbital
What is the exception to the rule of subshells filling with increasing energy
4s fills before 3d
How do electrons fill sub-shell orbitals as you go along the period
Singularly, before doubling up in each orbital