Log in to make full use of the services
Which statement describes the earliest model of the atom?*
The results of the gold foil experiment led to the conclusion that an atom is*
The discovery of the electron as a subatomic particle was a result of*
Given a list of atomic model descriptions:
A: electron shells outside a central nucleus B: hard, indivisible sphere C: mostly empty space
Which list of atomic model descriptions represents the order of historical development from the earliest to most recent?*
Four statements about the development of the atomic model are shown below.
Which order of statements represents the historical development of the atomic model?*
Which conclusion was drawn from the results of the gold foil experiment?*
As a result of the gold foil experiment, it was concluded that an atom*
Which particles are found in the nucleus of an argon atom?*
The part of an atom that has an overall positive charge is called*
Which statement describes the charge and location of an electron in an atom?*
Which phrase describes an Al atom?*
Which statement describes the structure of an atom?*
Base your answers to questions 13 on the information below and on your knowledge of chemistry.
A student compares some models of the atom. These models are listed in the table below in order of development from top to bottom.
State one way in which the Bohr model agrees with the Thomson model.*
Base your answers to questions 14 on the information below and on your knowledge of chemistry.
The diagrams below represent four different atomic nuclei.
Identify the nucleus above that is found in an atom that has a stable valence electron configuration.*
Base your answers to questions 15 on the information below and on your knowledge of chemistry.
Elements with an atomic number greater than 92 can be artificially produced in nuclear reactions by bombarding a naturally occurring nuclide with a different nuclide. One of these elements is roentgenium, Rg. The equation below represents a nuclear reaction that produces Rg-272.
State the location and the total charge of the protons in a Ni-64 atom.*