ATOMIC STRUCTURE

This particle determines what element you have - the elements identity.

• electron
• proton
• neutron
• valence shell

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NGSS.MS-PS1-1

This causes the mass of the nucleus to increase.

• adding an electron
• adding a neutron
• more orbitals
• adding negatively charged particles

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NGSS.HS-PS1-8

The particles of the atom you can find by knowing the atomic number.

• neutrons
• protons and electrons
• protons and neutrons
• atomic mass

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NGSS.MS-PS1-1

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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NGSS.MS-PS1-1

An element with a mass number of 10 and an atomic number of 6 has how many protons?

• 5
• 8
• 6
• 10

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NGSS.MS-PS1-1

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

• 11
• 5
• 6
• 16

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NGSS.MS-PS1-1

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

• 20
• 10
• 5
• 25

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NGSS.MS-PS1-1

Elements on the periodic table increase by...

• atomic mass
• size
• mass number
• atomic #

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NGSS.HS-PS1-2

An atom has 13 protons, 15 neutrons and ___ electrons what is its mass number?

• 13
• 26
• 28
• 15

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NGSS.MS-PS1-1

What is the difference between the atomic mass and the mass number?

• the atomic mass is always a whole number
• the atomic mass equals the atomic #
• mass number is the rounded atomic mass - always a whole number
• electrons