Chemistry.1 - Atomic structure

Subatomic particles with a negative charge

• Electron

• Proton

• Neutron

• Quark

Subatomic particles with a positive charge

• Electron

• Proton

• Quark

• Neutron

Value representing the number of protons in an element

• Isotope

• Atomic mass

• Atomic number

• Mass number

What is one way neutrons are different from electrons

• They are both negative

• They are both uncharged

• Electrons are positive, neutrons are uncharged

• Electrons are negative, neutrons are uncharged

The atomic number of this element is

• 6

• 3

• 7

• 10

Boron's atomic number is 5. Thus, the electron configuration is

The atomic number indicates the number of

• Protons in the nucleus

• Electrons in the nucleus

• Neutrons in the nucleus

• The sum of protons and electrons

For a neutral atom, the number of electrons ....

• Equals the number of neutrons

• Equals the atomic mass

• Equals the number of protons

• Equals the periodic group number

In the year 1913, .............. proposed an atomic structure model, describing an atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the positively charged nucleus like planets around the sun in our solar system

• Erwin Shrodinger

• Niels Bohr

• Albert Einstein

• J.J. Thomson

Answer explanation

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Talk about the atom.