chemistry of life

What 3 subatomic particles make up atoms?

• Isotopes, protons, covalent bonds
• quarks, quirks, compounds
• protons, neutrons, isotopes
• protons, neutrons, electrons

Tags

NGSS.MS-PS1-1

The isotopes of an element all have the same number of:

• electrons
• neutrons
• protons

A chemical ________ is a pure substance made entirely of 1 type of atom.

• element
• compound
• mixture
• blend

Tags

NGSS.MS-PS1-1

The nucleus of an atom usually contains:

• protons and neutrons
• electrons
• electrons and protons
• isotopes

Tags

NGSS.MS-PS1-1

The main types of chemical bonds are:

• ionic and subliminal
• covalent and hydrogenated
• ionic and covalent
• ionic and flourite

Tags

NGSS.HS-PS1-4

A slight attraction between oppositely charged regions of nearby molecules are called:

• Van Der Waals forces
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-4

The electrons involved in chemical bonds are called ___________ electrons.

• valence
• ionic
• Van Der Waals
• covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Water helps living things by:

• regulating temperature change
• serving as a buffer
• acting as a reactant in photosythesis
• all choices are correct

Tags

NGSS.MS-LS1-6

Life on Earth is based on the element:

• helium
• gold
• carbon
• water

Tags

NGSS.HS-LS1-6

What is the smallest unit of matter that cannot be broken down by chemical means?

• Atom
• Element
• Ion
• Isotope