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Worksheetsgk
Total questions: 25
Worksheet time: 13mins
Protons have a mass of
1 gram
1 mg
1 amu
1.67 g
Each element is determined by
the number of protons
the number of nucleons
the total of the subatomic particles
the amount of mass in the nucleus
-24 ng
The charge of every nucleus.
positive
negative
neutral
sometimes positive and sometimes negative
The current electron cloud model of the atom represents
overall constant motion
constant motion of the nucleus
probabilities of locations of electrons
where the electrons actually are in relation to the nucleus
These subatomic particles have so little actual mass that their mass has no effect on the overall mass of any atom.
electrons
protons
neutrons
All atoms and ions of a particular element have the same number of these
All of an atom's mass is considered to be
just the protons
in the electron cloud
in the nucleus
The current model of the atom is called
a Bohr model
the Planetary model
The Bull's Eye model
the cloud or electron cloud model
The reason that all atoms (NOT ions) are neutral overall in charge is because of equal numbers of
quarks
neutrons and electrons
protons and electrons
protons and neutrons
Atoms _____ be divided.
can
cannot
The smallest part of an element that still has the properties of the element.
atom
ion
isotope
molecule
This holds the nucleus of atoms together.
electromagnetic force
weak nuclear force
centripetal force
strong nuclear force
This attracts the nucleus and the electrons to each other and prevents the electrons from flying off.
electromagnetic force
weak nuclear force
centripetal force
strong nuclear force
