Periodic Table and Atoms

Choose the particle that has no charge.

• nucleus
• neutron
• proton
• electron

Which particles make up the nucleus of an atom?

• protons and neutrons
• electrons and protons
• electrons, protons, and neutrons
• electrons and neutrons

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What charge does the nucleus have and why?

• positive - the neutrons do not have a charge
• positive - the neutrons and protons are positively charged particles
• neutral - the neutral charge dominates the positive charge
• neutral - electrons cancel out the positive charge of the atom

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An element with a mass number of 11 and an atomic number of 5 has how many neutrons?

• 11
• 5
• 6
• 16

Most of the mass of an atom is contained here.

• electron orbitals 
• nucleus
• shells
• atomic #

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NGSS.HS-PS1-8

What is the element name of the atom pictured? 

• Fluorine
• Neon
• Argon
• Potassium

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NGSS.HS-PS1-1

What is the element name of the atom pictured? 

• Sodium
• Magnesium
• Titanium
• Vanadium

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NGSS.HS-PS1-1

Which statement best describes the locations of the subatomic particles?

• The protons and electrons are found in the nucleus, while neutrons are in the cloud outside the nucleus
• The neutrons are in the nucleus, while the protons and electrons are in the cloud outside the nucleus
• The protons and neutrons are in the nucleus, while the electrons are in the cloud outside the nucleus
• The electrons and neutrons are in the nucleus, while the protons are in the cloud outside the nucleus

In the early 1900s many scientists thought that an atom consisted of a positive substance with negative charges scattered throughout the substance. Then Ernest Rutherford completed an experiment that changed the concept of an atom. His discovery led to the understanding that an atom consists mostly of empty with space with-

• Protons orbiting a dense nucleus made of electrons and neutrons
• Electrons orbiting a dense nucleus made of protons and neutrons
• Neutrons and protons orbiting a cloud of electrons
• Electrons and protons orbiting a  cloud of neutrons

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NGSS.HS-PS1-8

A model of a beryllium atom is shown below.
What types of particles are found in the cloud surrounding the atom's nucleus?

• Positively charge particles and negatively charged particles 
• Negatively charged particles only
• Neutral particles and positively charge particles
• Positively charged particles only

Tags

NGSS.HS-PS1-1