Atomic Structure Flashcards
What are protons and what do they determine?
- determine what the element is
- determine atomic number
What are neutrons
- Help determine the mass number.
- If we change the # of neutrons it changes the mass #
What are electrons
- change the charge of the atom
- = to the number of protons
How many electrons can be kept In the 1, 2, 3, 4 shell?
2, 8, 18,32
What is the bohr diagram
The bohr diagram is to show the electrons in their shell. Bohr diagrams contain a central nucleus and shows electrons in fhsid shells. You must either have the proton number it atomic symbol in the centre.
How many electrons can be held in fbd A, p, d, f shell
2, 6, 10,14
What are periodic tables
Periodict tables are assorted according to atomic number. Coloums are called groups, rows are called periods.
What are the groups in the periodic table?
Group 1: alkali metals, 2: alkaline earths, 3-15; transition metals 7; halogens 8; noble gas.
D9 rule
You can’t end an ion on D9 it takes a electron from the previous shell and makes it d10
Atomic radius
Atomic radius increases when going down due to the increasing number of showers. It decreases along a period more electrons in the outer shell and more protons in the nucleus. Stronger positive pool from nucleus to outer shell, hence electrons moving closer to the nucleus. 
First ionisation energy
First ionisation energy is the energy required to remove the most loosely how to electron from one mole of gastritis items to produce one mole of gas does irons 8 to the charge of positive one. Across a period the first time no station energy increases. And down a group the first ionisation energy decreases as it is the electrons are further away so they’re less attracted.
Electronegativity
Electronegativity is a chemical property that describes a tendency of an atom or a functional group to attract electrons towards its self and thus the tendency to form negative ions. If it has the same show bracket number of valance electrons bracket. Look at the core charge 
Core charge
The core charge is the effective charge experience by an hour to shall electron. Remember: protons are in the nucleus so the nucleus is positively charged. The more protons a stranger/larger the positive charge. The value for core charge is the number of electrons in the outer shell. Electrons in the initials are more attracted to the positive nucleus as they are closer.
Metallic bonding
Meant to give this out of shower electrons to produce cations surrounded by sea of electrons.
Between metals
The electrical force of attraction between the positive ions in the sea of electrons then Bonzi Adam strongly and the crystal structure. Properties Cohen good conductors of heat lustrous Dr. valuable high density in a range of melting and boiling points.
Metallic bonding properties
It has a higher boiling point as it takes a lot of energy to reach strange which breaks off. When betty not join into wire positive ions force across each other D localising electrons does a move in still sore and positive. A lot of thermal energy is required to overcome the strong electrostatic forces of attraction between the middle islands in the sea of electrons.
