Answer: synthesis, decomposition, single-displacement, double-displacement, combustion and acid-base reactions.
Explanation:
Across
1: Period
5: Proton
Down
2: Electron
3: Neutron
More later, I've gotta do homework now :)
Answer : Option A) a tiny fragment or piece of matter particle.
Explanation : Atom are the tiny particles of a matter including particles; <span>The definition of an atom can be stated as the smallest component of any element, which can be characterized by sharing of the chemical properties of the element and a nucleus with neutrons, protons and electrons. </span>
The answer to this question is a
They are almost the same size and they are rocky planets (like not made of gas)
Hope this helps :)