Question

1. what is an atom? *

a type of subatomic particle with no charge
a cloud of electrons with no nucleus
the building block of all matter
a group of molecules bonded together

1. atoms are made of even smaller particles *

true
false

Explanation:

For question 4: An atom is the basic unit of matter. The first option describes a neutron (subatomic), the second is incorrect (atoms have nuclei), the fourth describes molecules (made of atoms). For question 5: Atoms consist of subatomic particles (protons, neutrons, electrons), so the statement is true.

Answer:

1. The building block of all matter
2. True