What does the Bohr model suggest?

That electrons travel around the nucleus of an atom in orbits or definite paths.

Atoms are small, hard, indivisible objects.

That protons in the nucleus are attracted to electrons in the electron clouds.

The atomic number tells you what?

both electrons and protons in an atom.

Which statement BEST describes the Bohr model of the atom?

Electrons orbit around the nucleus in set paths.

Electrons are arranged in energy clouds.

Electrons have properties similar to waves.

Electrons make up most of the mass of an atom.

Early in the history of the periodic table, a scientist observed the relationships between element characteristics and atomic mass. The scientist used this information to predict the existence of unknown elements with specific atomic masses and characteristics. How was this information applied by modern scientists?

Scientists wer able to predict the properties of new elements.

Scientists were able to change the atomic makeup of elements.

Scientists were able to make computer parts because of the unpredictable properties of silicon.

Scientists were able to create new elements with unpredictable physical and chemical properties.

The list which best describes the properties of metals is .......

strong, good conductor of heat and electricity, solid

strong, poor conductor of heat and electricity, shiny

weak, ductile, good conductor of heat and electricity

weak, low melting point, poor conductor of heat

What is the mass number ?

the number of protons and neutrons

the number of protons and electrons

Chemistry Atomic Structure

Authored by Tiffany Hill

Chemistry

10th - 12th Grade

NGSS covered

Used 118+ times

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A(n) is the smallest basic unit of matter.

proton

atom

electron

isotope

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which of the following is NOT a type of subatomic particle?

Neutron

Electron

Proton

Nucleus

CALCIUM

Elements which are shiny, conduct electricity and heat are called

metal

nonmetal

metalloid

nonexistent

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is something called if it is only made of one type of atom?

compound

element

isotope

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

SILVER

What is the charge of a proton?

positive

negative

neutral

salty

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Chemistry Atomic Structure

A(n) is the smallest basic unit of matter.

Which of the following is NOT a type of subatomic particle?

CALCIUM

Elements which are shiny, conduct electricity and heat are called

What is something called if it is only made of one type of atom?

SILVER

What is the charge of a proton?

What is the charge of a neutron?

What is the charge of an electron?

Which TWO subatomic particles are located in the nucleus of an atom?

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