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atoms and molecules cos im fucked - Coggle Diagram
atoms and molecules cos im fucked
ATOMS ( tf is wrong with the notes )
an atom is the simplest unit of an element
Reach element in the periodic table consists of only 1 atom
e.g. carbon ( element ) only have carbon atoms
Neutrons is a particle with no charge
Protons is a particle with positive charge
Protons and Neutrons are densely packed to the nucleus so they are positively charged
Electrons is a particle with negative charge, it moves around the nucleus at high speeds
Atoms consists of protons, electrons and neutrons
Atoms are mostly empty spaces and electrons move around the atom like how planets rotate around the sun.
An atom is
Electrically neutral
/equal in protons and electrons ( if not its not correctly charged: one is more positively charged or negatively charged
Relative charge and mass in an atom
Proton
+1 ( positive charge )
1
within the nucleus
Electron
-1 ( negative charge )
1/1840 ( its a fraction )
around the nucleus
Neutron
0
1
within the nucleus
Relative charge
relative mass
Elements and their bullshit
Mass number: Mass number is at the bottom of the element box/below the element like Na, Ag, O etc. and is the average of everything in the atom
Atomic no, or proton no. is the number of protons in the atom e.g. 11 ( proton no. ), 23 ( mass no. ) 23-11=12 ( no. of electrons )
no 2 elements in the periodic table can have the same no. of protons
Comparing ATOMS ( 1 ) and MOLECULES ( more than 1 )
an atom combined with more atoms of the same element will form a molecule
A molecule is made up of two or more atoms that are chemically combined.
Chemical formulas tells us numbers of each atom of the element
Letter( only capital letter counts as 1 atom): referring to the atoms, number referring to the number of atoms
Molecules of stuff
Molecules of a compound: consists of two or more types of atoms that are chemically combined.
Molecules of elements: consists of only one type of atom that are chemically combined.