2023 Final Exam Review

Which Bohr model represents Boron?

• 
• 
• 

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NGSS.MS-PS1-1

Which two particles make up the mass of an atom?

• Protons and Neutrons

• Neutrons and Electrons

• Protons and Electrons

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NGSS.MS-PS1-1

How many valence electrons does a neutral atom with 15 protons have? (Use your Periodic Table)

Mathematical Equivalence

ON

Which statement correctly identifies the subatomic particles in this element?

• A and B are the electrons and protons; C is the neutrons.

• A and B are the neutrons and protons; C is the electrons.

• A and B are the neutrons and electrons; C is the protons.

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NGSS.MS-PS1-1

Where are electrons found in an atom?

• Electrons are found within the nucleus that contains protons and neutrons.

• Electrons are found within the nucleus that contains protons and electrons.

• Electrons are found orbiting the nucleus that contains protons and neutrons.

Which of the following are found in the nucleus of an atom?

• Neutrons and Electrons

• Neutrons and Protons

• Electrons and Protons

An element with an atomic number of 51 and an atomic mass of 121 has how many neutrons in each atom?

• 70

• 121

• 172

An atom consists of 21 protons, 22 neutrons, and 21 electrons. Which information will be MOST helpful in determining the atom's identity?

• The number of protons

• The number of electrons

• The number of valence electrons

How many electrons are in the outermost energy level of a neutral atom of aluminum?

• 8

• 3

• 2

If an atom has 17 protons, 18 neutrons, and 17 electrons, what is the mass of this atom?

• 18

• 35

• 52

Tags

NGSS.MS-PS1-1