Not only are they all polygons, but the numbers of their sides form a series of three consecutive integers ... a monotonically increasing arithmetic series with a common difference of ' 1 ' if you will.
Time Series.
A pair of parentheses is used to "enclose" numbers or letters in a series or elsewhere when enclosure is useful to understand the meaning. However, to separate the items in a series, only a comma and space after each item is needed, along with a conjunction to close the series. Examples: 1, 1, 2, and 3 are the first four numbers of a Fibonacci series; paragraphs (A), (B)(2), and (D) are the most relevant ones for this discussion.
The data that can best be represented by a line chart is time series data. This type of data shows how something changes over a long or short period of time.
The "golden ratio" is the limit of the ratio between consecutive terms of the Fibonacci series. That means that when you take two consecutive terms out of your Fibonacci series and divide them, the quotient is near the golden ratio, and the longer the piece of the Fibonacci series is that you use, the nearer the quotient is. The Fibonacci series has the property that it converges quickly, so even if you only look at the quotient of, say, the 9th and 10th terms, you're already going to be darn close. The exact value of the golden ratio is [1 + sqrt(5)]/2
Activity series are useful for single displacement reactions.
Electronegativity is not typically a factor in determining the activity series of metals. The activity series is based on the reactivity of metals with acids and is typically determined by the tendency of a metal to lose electrons. Electronegativity, on the other hand, is a measure of the tendency of an atom to attract electrons in a compound.
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No, an element in the activity series can only replace another element if it is higher on the series. Elements higher on the series are more reactive and can displace those below in a single displacement reaction.
Yes, zinc is LESS reactive than potassium based on the activity series.
B.Zn2+
An activity series is a ranking of metals in order of their reactivity with acids and water. The series helps predict whether a metal will undergo a reaction with a particular substance based on the relative positions of the metals in the series. The higher a metal is in the activity series, the more reactive it is.
Fe2+ will react with any metal below it in the activity series, displacing the metal from its salt solution. Fe2+ ions will react with metals such as Cu, Ag, and Au but not with metals above Fe in the activity series like Mg, Zn, or Al.
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The metals highest on the list are the least stable.
Metals higher in the series will replace metal ions in solution that are lower in the series
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