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Tcecarenko [31]
2 years ago
11

• An element in group 2, period 4 has similar properties with

Chemistry
1 answer:
babymother [125]2 years ago
7 0

Answer:  Elements in Group 2

Explanation:  The periodic table was arranged by Dmitri Mendeleev specifically  around similarites in their chemical behaviors.  He found that as atomic number increases, at some point an element starts to react in a manner similar to a previous one.  When that happened, he would place the larger element under the smaller one, and eventually noticed a periodicity in the table.  Elements in a column (Groups) had similiar chemical properties.  We know today that these similarities are due to the electron configuration, and that these configurations repeat themselves.  He left gaps in the table when he could find an existing element with properties similar to others in that group.  I big leap of faith, but it worked.  Elements for those missing boxes were eventually discovered.

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pochemuha

Answer:

Density dependent factors include disease, competition, and predation. Density dependant factors can have either a positive or a negative correlation to population size

Explanation:

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7 0
3 years ago
Read 2 more answers
Give the chemical symbols for the following elements: (a) potassium, (b) tin, (c) chromium, (d) boron,(e) barium, (f) plutonium,
Ilia_Sergeevich [38]

Answer:

A) Alkili Metal

B) Basic Metal

C)  Transition Metal

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8 0
4 years ago
xidation in redox reactions involves a. a loss of electrons and an increase in the oxidation number b. a gain of electrons and a
Strike441 [17]

Answer:

Option a is the right one

Explanation:

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When the oxidation state decrease → reduction → the element gains electrons

When the oxidation state increase → oxidation → the element release electrons

4 0
3 years ago
A gas occupies 2.50 L at 1.5 atm. What will be the volume of this gas if the
sashaice [31]

Answer:

2.08 L

Explanation:

V_{2}  = V_{1} (\frac{P_{2} }{P_{1} })

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=2.08L

8 0
2 years ago
What are the elements that make up the compound, and what are some properties of these elements?
nekit [7.7K]

Answer: Below (=

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The properties of a compound depend not only on which atoms the compound contains, but also on how the atoms are arranged. Atoms of carbon and hydrogen, for example, can combine to form many thousands of different compounds.

7 0
2 years ago
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