Atoms, Elements, Molecules, Compounds..

What is the name of this element?

• lithium

• oxygen

• carbon

• helium

The formula for atomic mass is mass number minus atomic number.

What is the atomic mass of this element?

• 4 neutrons

• 3 neutrons

• 2 neutrons

• 1 neutron

What two elements are needed to create this element?

• Carbon and Oxygen

• Hydrogen and Oxygen

• Oxygen and Oxygen

• Hydrogen and Lithium

H₂O is most accurately described as a _______.

• molecule

• compound

• element

• atom

What is the meaning of an isotope?

• It is a stable element

• It has a positive charge

• It is radioactive

• It is an alternative form of an element

Which of the images represents a compound?

• salt

• pepper

• both

• none

What kind of charge does a neutron have?

• radioactive

• neutral or no charge

• positive

• negative

The nucleus is where _____ and ____ are located in an atom?

• electrons and protons

• protons and neutrons

• electrons and neutrons

• only electrons

Which part of the atom has a negative charge?

• protons

• neutrons

• electrons

• atoms

Which is considered an element?

• Salt and Sugar

• Carbon Dioxide and Carbon

• Oxygen and Calcium

• None of these