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Andrew [12]
3 years ago
9

For calcium and chlorine i need the oxidation number the chemical formula and drawn model!

Chemistry
2 answers:
Mrac [35]3 years ago
8 0
Chlorine oxidation #: -1 
calcium oxidation#: +2

PilotLPTM [1.2K]3 years ago
3 0
Ca = +2
Cl = -1
CaCl₂
Cl-Ca-Cl
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Light elements with an atomic number less than 20 generally have a neutron to proton ratio equal to
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The mass number of an atom is 15, and its atomic number is 7. The atom probably has... 8 neutrons in the nucleus. about as much
Artist 52 [7]

Answer: Option (a) is the correct answer.

Explanation:

Atomic number is the sum of only total number of protons present in an element. Whereas mass number is the sum of total number of both protons and neutrons present in an element.

For example, given atom has mass number as 15 and its atomic number is 7.

Therefore, number of neutrons present in it will be calculated as follows.

                    Mass number = no. of protons + no. of neutrons

                         15 = 7 + no. of neutrons

                    no. of neutrons = 15 - 7

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Thus, we can conclude that the given atom contains 8 neutrons in the nucleus.

3 0
3 years ago
Which best describes the trends in electronegativity on the periodic table?
Wittaler [7]

Answer:

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Explanation:

7 0
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Scrat [10]

Answer:

moving across te periodic table electronegativity increases.

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as we move across a period the effective nuclear charge increases as the number of protons in nucleus increases. due to increase in effective nuclear charge electronegativity increases

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Both destructive and constructive, the natural event seen here, is important in destroying and creating landforms on
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