properties of matter
what are the 3 states of matter
solid liquid gass
what is chlorine atomic mass
35.453 u
what is atomic structures
the structure of an atom that consists of a nucleus at the center containing neutrons and protons,
what is electron configuration
a simple way of writing down the locations of all of the electrons in an atom
how do you measure density
Density = mass/volume
how many protons does iron have
26
what makes up a atomic structure
protons, electrons, and neutrons
what can you use to find electron configuration
periodic table
what is melting point
temperature change in which solid substance turns into a liquid
who made the periodic table
Dmitri Mendeleev
where is the nucleus of an atom
core
Which element has a configuration of 1s 2 2s 2 2p 6 3s 2 3p 4
sulfer
how do you find velocity
velocity= distance/time
what are the columns on the periodic table called
groups
where are the electrons shell
regions surrounding the atomic nucleus
How to find the electronic configuration of an element
Identify the given element and its atomic number from the periodic table.
a solution is a type of ? what
mixture
when was the periodic table created
1869
what charges do a protons and neutrons and electrons have
Protons have a positive charge. Electrons have a negative charge. Neutrons have no charge.
What are the 3 basic rules of electron configuration