Chemistry atomic structure 1.2 Flashcards
What is group 1 known as in the periodic table?
Group 1 is known as the Alkali metals
What is group 0 known as?
The noble gases
What is group 2 known as?
The Alkaline Earth
What is group 7 known as/
The Halogens
What is a proton atoms charge?
+1
What is a neutron atoms charge
0
What is an electrons charge?
-1
What is a protons mass and position
1 amu and its in the nucleus
What is a neutrons mass and position
1amu and its in the nucleus
What is a electrons mass and position
almost 0 and its in the shell
What does Na- mean?
It means it has gained an electron
What does Na+ mean?
It means it has lost an electron
How many electrons does the 1st shell hold?
2 electrons
how many does the 2nd shell hold?
8 electrons
how many does the 3rd shell hold?
8 electrons.