atomic structure Flashcards
the properties of all elements and compounds depends on the
atoms that makes them up
what is an element
is a substance contaning only one type of atom
what are the two important areas
nucleas
electron energy levels
The nucleus of an atom contains which two types of particles
neutrons and protons
where are the electrons found
outside the nucleus
protons are
positive
negative
or neutral
positive
neutrons are
positive
negative
or neutral
neutrol
electrons are
positive
negative
or neutral
negitive
outside the nucleus, the electrons have a mass of
almost 0
All the mass of an atom is found
the nucleus in the protons and neutrons
protons -
charge ?
mass ?
charge 1+
mass 1
electron
charge ?
mass ?
charge 1-
mass-0
neutron
charge ?
mass ?
charge 0
mass 1
which element has the atomic number of 16
sulfur
Which element has the symbol of Ne
neon
which element has a total of 5 electrons
boron
what is the symbol of the element magnesium
Mg