bio chem/ organic chem

Matter is anything that occupies space or has ________.

• energy

• volume

• temperature

• mass

How does weight differ from mass?

• Weight is the same as mass.
• Mass is a force that changes with gravity.
• Weight is a measure of volume.
• Weight is a force dependent on gravity, while mass is a measure of matter.

What are the 2 rules when creating a chemical symbol for an element?

• Three letters maximum; all letters uppercase.
• Must include a number in the symbol.
• Only one letter; no lowercase letters allowed.
• 1. One or two letters; 2. First letter uppercase, second letter lowercase (if present).

Define "atom"

• An atom is the basic building block of matter.
• An atom is a large particle made of cells.
• An atom is a form of energy.
• An atom is a type of molecule.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Which 2 items are located within the nucleus?

• protons, and neutrons

• electrons and neutrons

• protons and electrons

Electrons have a _______ charge.

• positive charge

• negative charge

• neutral charge

• variable charge

Tags

NGSS.HS-PS1-2

Protons have a ______ charge.

• neutral

• negative

• variable

• positive

Neutrons have a _______ charge.

• negative

• positive

• no

The atomic number tells us the number of ______, which also equals the number of ________.

• protons; electrons

• neutrons; protons

• electrons; neutrons

• protons; neutrons

What is an isotope?

• An isotope is an element with different numbers of protons and neutrons.
• An isotope is a type of chemical bond between elements.
• An isotope is a molecule that contains multiple elements.
• An isotope is a variant of an element with the same number of protons but different numbers of neutrons.

Tags

NGSS.HS-PS1-8