Protons, Neutrons, and Electrons.
What are atoms made up of?
Subatomic particles.
What are the two subatomic particles?
Protons and neutrons.
How are protons and neutrons charged?
Protons are positively charged. Neutrons have no charge.
All atoms contain at least how many protons and how many neutrons?
All atoms contain at least one proton and one neutron.
What element is the exceptions to a certain amount of neutrons?
Hydrogen-1 becasue it has no neutrons.
Protons and neutrons have the same what?
Mass.
What is mass defined as when regarding suabtomic particles?
Mass is defined as the atomic mass unit (amu)
What is occupied in the space outside of an atoms nucleus?
Electrons
What is an electron?
An electron is a negatively charged particle.
What is the magnitude of the negative charge on an electron equal to?
The amount of positive charge of a proton.
What is the mass of an electron?
The mass of an electron is 1/1836 the mass of a proton or a neutron.
Where is most of the mass of an atom found?
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Most of the mass of an atom is found in the protons and neutrons of an
atom sinc electrons are very small.
What is the electron cloud?
The relatively larege space that surrounding an atoms nucleus.
What does the electron cloud account for?
The electron cloud accounts for the most of the atom’s size.
What does the configuration of electrons within this space depend on?
The amount of electrons present and their energy.
What happens when an atoms overall charge is zero?
The atom of the element contains the same amount of protons and
neutrons.
What happens when an atom is in a neutral state?
The electrons and protons are in a neutral state.
What happens to the charge when an atom gains or loses electrons?
The charges in the atom becomes unbalanced and the particles has a net
charge.
When the net charge is negative what happens?
The number of electrons is greater than the number of protons
When the net charge is positive what happens?
The number of protons is greater than the number of electrons.
What are ions?
an atom or a molecule with a net charge due to the lose or gain of one or
more electrons.
Identifying atoms
What do the difference of each atom account for?
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The differences of each atom account for the various properties that the
elements exhibit.
What are the primary details that identifies the atoms of a specific element?
The number of protons that the element has.
The atoms of the element hydrogen contains how many proton in its nucleus?
1 proton.
An atom of the element helium contains exactly how many protons?
2 protons.
What do the atoms of all elements contain?
The elements of all atoms contain protons, neutrons, and electrons. Each
element has a different number of protons that identify that element.
Question to answer after the reading?
How can the subatomic parts of an atom be used to identify it?
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