Atomic Structure & The Periodic Table Flashcards
What is a neutrons charge & mass? Where are the neutrons?
0
1
Nucleus
What is a protons charge & mass? Where are the protons?
+1
1
Nucleus
What is an electrons charge & mass? Where are the electrons?
-1
1/1840
Shells
How do you find the atomic number?
Protons = electrons
How do you find the mass number?
Protons + neutrons
What is the general electronic structure.
2,8,8,8
What is Group 1? What do they have to be stored under? How does reactivity increase? Are they hard or soft?
Alkali Metals
Oil
As you go down the group
Soft
What is group 2?
The Alkaline Earth Metals
What is Group 0? Are they reactive? What colour are they? What are they?
The noble gases
No (inert)
Colourless
Helium, neon + argon
What is Group 7?
The Halogens.
What is an atom?
Smallest part of an element
What is a nucleus?
Centre of atom, contains protons & neutrons
How do groups & periods go?
Groups are columns.
Periods are rows.
Which are the transition elements?
Elements between groups 2 + 3
What is an isotope?
Atoms with same atomic number but different mass numbers.