Post Predictive Quiz Atomic Structure

Choose the correct description of J. J. Thomson's Model of an Atom.

• The model is a indivisible and indestructible sphere

• The model is a sphere in which negatively charged particles - electrons- immersed in a positively charged space of the sphere.

• The model is a sphere in which negatively charged particles - electrons- move around the center of an atom creating an electron cloud

• The model is a sphere in which negatively charged particles - electrons - move around the nucleus of an atom in a defined passes, called orbits, like planets around the sun

What is the name of J.J. Thomson's Model of an Atom?

• Jimmy Neutron Model

• Solar System Model

• Plum-Pudding Model

• Quantum mechanical Model

Who was Ernset Rutherford?

• English Science teacher who developed the first Atomic Theory

• English physicist who discovered an electron

• German physicist who discovered a proton

• New Zealand born physicist who established existence of a positively charged nucleus in an atom

Tags

NGSS.HS-PS1-8

What results did Rutherford observe in his Gold-Foil experiment?

• He observed that all alpha particles did go through a gold-foil in straight lines

• He observed that most alpha particles did not go through a gold-foil and stopped on one side of the gold foil.

• He observed that a small number of alpha particles bounced off the gold-foil at very large angles

• He observed that all alpha particles slightly deflected from the straight line when going through a gold-foil

Choose one of the conclusions that Ernest Rutherford made based on the experimental results of his Gold-Foil experiment

• He concluded that the atom is indivisible

• He concluded that the atom is mostly empty space

• He concluded that the atom has neutrons

• He concluded that the atom is tightly packed with subatomic particles all mixed together

Choose one of the conclusions that Ernest Rutherford made about the mass of the atom, based on the experimental results of his Gold-Foil experiment

• He concluded that almost all mass of the atom is distributed evenly among subatomic particles

• He concluded that almost all mass of the atom is distributed among electrons

• He concluded that almost all mass of the atom is concentrated in a small region, in a center of an atom, that has a positive charge

• He concluded that almost all mass of the atom is concentrated in a small region, in a center of an atom, that has a negative charge

Tags

NGSS.HS-PS1-8

Based on the experimental results of his Gold-Foil experiment, Ernest Rutherford concluded that

• The very dense center of the atom has a positive charge

• The very dense center of the atom has a negative charge

• The very dense center of the atom has no charge

• The atom doesn't have a center and all particles are distributed evenly like in a chocolate chip cookie

Tags

NGSS.HS-PS1-8

What is the nucleus of the atom?

• It is a centra organel of a cell

• It is a center of a fruit

• It is a very dense cenral core of an atom that has a positive charge

• It is a very dense cenral core of an atom that has a negative charge

Tags

NGSS.HS-PS1-8

What subatomic particles are in the nucleus of an atom?

• Only protons

• Protons and neutrons

• Only neutrons

• Only electrons

• Protons and electrons

Tags

NGSS.HS-PS1-8

Based on Rutherford's model of the atom, electrons in the atom are located

• inside of the nucleus of the atom

• outside and around the nucleus of the atom

• outside and inside of the nucleus of the atom