= 9.1 × 10^6
(scientific notation)
= 9.1e6
(scientific e notation)
= 9.1 × 10^6
(engineering notation)
(million; prefix mega- (M))
= 9100000
<span>(real number)</span>
1: Decomposition reaction
2: Combination reaction
3: product
4: Reactant
Definitely definite mass because liquids can take on any shape and can have different volumes.
Rows of elements are called periods. The period number<span> of an element signifies the highest unexcited energy level for an electron in that element.
</span>Columns of elements help define element groups<span>. </span>Elements within a group share<span> several common properties. Groups are elements have the same outer electron arrangement.</span>
Protons: 12
Neutrons: 13
<span>Electrons: 12</span>