Chemistry

What is the atomic number?

• number of neutrons

• number of protons

• number of protons+neutrons

• number of protons+electrons

protons have (a)

• positive charge

• negative charge

• no charge

• nucleus

Who created the Periodic Table of Elements?

• Neils Bohr

• Dmitri Mendeleev

• Ernest Rutherford

The Periodic Table of Elements

• is organized by weight (up and down) and characteristics (left and right)

• is organized by weight (left and right) and characteristics (up and down

• is organized by only weight

• is organized by only characteristics

What is the atomic weight?

• protons+neutrons=atomic weight

• protons+electrons=atomic weight

• electrons+neutrons=atomic weight

• number of protons

• number of electrons

Neutrons have (a)

• positive charge

• no charge

• negative charge

Who created the model of an atom?

• Neils Rutherford

• Neils Bohr

• Ernest Rutherford

• Dmitri Bohr

• Dmitri Mendeleev

What is the smallest combination of 1 or more atoms that are strongly bonded in a specific way?

• A Molecule

• An Atom

• Matter

• Chemistry

• An Element

Electrons have (a)

• positive charge

• negative charge

• no charge

What is in the nucleus?

• protons, electrons

• protons, neutrons

• neutrons, electrons

• electrons