Question

1. what determines the identity of an element?

number of neutrons atomic mass
number of electrons atomic number (number of protons)

1. where are electrons found?

in the nucleus orbiting the nucleus in the proton inside the neutron

1. which particle has no charge?

proton neutron electron ion

1. the total number of protons and neutrons is called the what?

atomic number atomic mass electron count nuclear charge
multi - select: place an “x” next to all that apply to answer each question.

1. what are the main ideas of atomic theory?

atoms can be easily seen with the naked eye. atoms are made of invisible spirits.
all atoms of the same element are identical atoms are indivisible.

1. which particles are found in the nucleus of an atom?

electrons protons neutrons ions

Explanation:

1. The atomic number, which is the number of protons, determines the identity of an element. Different elements have different numbers of protons.
2. Electrons are found in orbitals around the nucleus, orbiting the nucleus.
3. Neutrons are neutral particles with no charge. Protons are positively - charged and electrons are negatively - charged.
4. The sum of protons and neutrons in an atom gives the atomic mass.
5. The main ideas of atomic theory include that all atoms of the same element are identical and atoms are the basic, indivisible units of matter (although modern understanding has refined the idea of indivisibility). Atoms are too small to be seen with the naked eye and are not made of invisible spirits.
6. Protons and neutrons are located in the nucleus of an atom. Electrons are outside the nucleus and ions are charged atoms or groups of atoms.

Answer:

1. Atomic number (number of protons)
2. Orbiting the nucleus
3. Neutron
4. Atomic mass
5. All atoms of the same element are identical, Atoms are indivisible
6. Protons, Neutrons