BIO 101 Ch.2 Basic Chemistry

What is matter?

• Anything that has mass and occupies space

• A substance that cannot be broken down

• A type of chemical reaction

• A form of energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

In which states does matter exist?

• Solid, liquid, gas, plasma

• Solid, liquid, vapor, ice

• Gas, liquid, vapor, plasma

• Solid, ice, gas, liquid

Tags

NGSS.MS-PS1-4

What are elements composed of?

• Different types of molecules

• One type of atom

• Multiple types of atoms

• Various compounds

Tags

NGSS.MS-PS1-1

How many elements are naturally occurring?

• 92

• 100

• 88

• 96

Which elements make up 95% of the body weight of organisms?

• Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur

• Calcium, Potassium, Sodium, Magnesium, Iron, Zinc

• Helium, Neon, Argon, Krypton, Xenon, Radon

• Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen

What is the smallest part of an element that displays the property of the element?

• Molecule

• Atom

• Compound

• Mixture

Which subatomic particle is positively charged?

• Neutron

• Electron

• Proton

• Photon

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Variable

Where are electrons located in an atom?

• Nucleus

• Electron shells

• Proton cloud

• Neutron field

What does the atomic number of an element represent?

• The number of neutrons in an atom

• The number of protons in an atom

• The sum of protons and neutrons

• The number of electrons in an atom