Question

select all the statements that best describe an atom.
has no net charge and has a cloud surrounding a dense inner core
is the largest particle of an element that retains its identity in a chemical reaction
contains subatomic particles named the proton, neutron, and electron
is exactly the same as every other atom and has the same properties
is the smallest particle of an element that retains its identity in a chemical reaction

Explanation:

• An atom has no net charge (protons +, electrons -, neutrons 0; balanced). It has electron cloud around nucleus (dense inner core).
• Atoms contain protons, neutrons (in nucleus), and electrons (in cloud).
• Atom is the smallest particle of an element retaining identity in chemical reaction (not largest).
• Atoms of same element can have isotopes (different neutrons, same protons; different properties in some cases like mass - related).

Answer:

• has no net charge and has a cloud surrounding a dense inner core
• contains subatomic particles named the proton, neutron, and electron
• is the smallest particle of an element that retains its identity in a chemical reaction