Question

Which are particles that make up the nucleus of an atom? Select the two correct answers. (1 point)
A. electrons
B. bozons
C. protons
D. neutrons
E. muons

Which is true of an element?
A. can be made up of multiple types of atoms
B. can be either a compound or a molecule
C. has a unique number of protons; if the element were to lose a proton, it would become a different element
D. has a unique number of electrons; if the element were to lose an electron, it would become a different element

Two different types of elements are combined so that they look like one substance, but they are not bonded together. What could the result be?
A. a compound
B. a solution
C. an element
D. a heterogeneous mixture

Elements can chemically combine with other elements to form which of the following?
A. solutions
B. other elements
C. impure substances
D. compounds

Two different chemicals react and bond together. What do they become?
A. an element
B. a mixture
C. a solution
D. a compound

Answer 1

A. protons and D. neutrons are the particles that make up the nucleus of an atom.

C. has a unique number of protons; if the element were to lose a proton, it would become a different element.

D. a heterogeneous mixture.

D. compounds.

D. a compound.

Answer 2

3 isn't right but thx

Answer 3

I apologize for the mistake. For the element combination without bonding, the result could be a heterogeneous mixture (D).