ESS Unit 2 Test Review

isotope

• Two or more atoms joined together by chemical bonds

• A substance made of two or more different elements that chemically combine

• the smallest particle of an element that still has the properties of that element?

• elements with a different amount of neutrons

compound

• Two or more atoms joined together by chemical bonds

• A substance made of two or more different elements that chemically combine

• the smallest particle of an element that still has the properties of that element?

• elements with a different amount of neutrons

Tags

NGSS.MS-PS1-1

molecule

• Two or more atoms joined together by chemical bonds

• A substance made of two or more different elements that chemically combine

• the smallest particle of an element that still has the properties of that element?

• elements with a different amount of neutrons

Tags

NGSS.MS-PS1-1

atom

• Two or more atoms joined together by chemical bonds

• A substance made of two or more different elements that chemically combine

• the smallest particle of an element that still has the properties of that element?

• elements with a different amount of neutrons

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Subatomic particles found on the outermost shell & responsible for the atom's reactivity and bonding are called

• neutrons

• protons

• electrons

• valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many carbons are on n C6H24O10?

• 6

• 24

• 10

Tags

NGSS.MS-PS1-1

How many oxygens are on n C6H24O10?

• 6

• 24

• 10

Tags

NGSS.MS-PS1-1

Which of the following are true statements? Select all that appy.

• When an atom loses an electron, it becomes a positive (+) ion.

• When an atom loses an electron, it becomes a negative (-) ion.

• When an atom gains an electron, it becomes a positive (+) ion.

• When an atom gains an electron, it becomes a negative (-) ion.

Which of the following statements is true about atomic number? Select all that apply.

• The atomic number tells you the number of neutrons in a molecule.

• The atomic number tells you the number of protons in a molecule.

• The periodic table is arranged by atomic number.

Which subatomic particles are located in the nucleus of an atom? Select all that aply.

• protons

• neutrons

• electrons