Biology Module 6

What is the most abundant element found in living things?

• Carbon

• Nitrogen

• Oxygen

• Hydrogen

How many naturally occurring elements exist?

• 82

• 92

• 100

• 118

What type of bond forms when electrons are shared between atoms?

• Hydrogen bond

• Ionic bond

• Covalent bond

• Van der Waals bond

What makes isotopes of the same element different from each other?

• Number of protons

• Number of electrons

• Number of neutrons

• Atomic mass

What is the overall charge of a neutral atom?

• Positive

• Negative

• Zero

• Variable

Tags

NGSS.HS-PS1-7

Which particles are located in the nucleus of an atom?

• Electrons and protons

• Protons and neutrons

• Neutrons and electrons

• Ions and protons

What was the main impact of oxygen on life's development?

• It reduced organism complexity

• It made organisms smaller

• It slowed down evolution

• It drove the development of complexity

What determines an element's identity?

• Number of neutrons

• Number of protons

• Number of electrons

• Atomic mass

Which type of bond involves the transfer of electrons between atoms?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Double bond

What is a compound?

• A single type of atom

• A mixture of elements

• A group of similar atoms

• Two or more elements chemically combined

Tags

NGSS.MS-PS1-1