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Ainat [17]
3 years ago
10

Electronegativity values increase from left to right across a period in the periodic table because there is an increase in the c

harge of the nuclei in this direction.
Chemistry
1 answer:
Mademuasel [1]3 years ago
5 0
First, let us define Electronegativity. Electronegativity is "the ability of an atom to attract electrons." In addition, electronegativity increases in elements from left to right, while on the other hand, electronegativity decreases from top to bottom in an element group. It decreases because the atomic radius increases as we go downward an element in the group.
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An atom has a mass number of 24 and 13 neutrons. what is the atomic number of this atom?
Elodia [21]
do ityou times 24×13=312.
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3 years ago
Which of the following regions does NOT match its description?
Fantom [35]

The region that does not match its description is the fourth answer choice which is Abdominal region: spine

  • For the first answer choice - Cranial region: head

The cranial region encompasses the upper part of the head.

∴ The first answer choice matches its description.

  • For the second answer choice - Axillary region: armpits

The axillary region is an anatomical region under the shoulder joint where the arm connects to the shoulder. Therefore, it encompasses the armpits.

∴ The second answer choice matches its description.

  • For the third answer choice - Thoracic region: chest

The thoracic region runs from the base of the neck down to the abdomen. Therefore, it encompasses the chest

∴ The third answer choice matches its description

  • For the fourth answer choice - Abdominal region: spine

The abdominal region is divided into four quadrants which include are

1. Right upper quadrant fossa (RUQ)

2. Right lower quadrant fossa (RLQ)

3. Left lower quadrant fossa (LLQ)

4. Left upper quadrant fossa (LUQ)

It is also divided into nine (9) areas, all of which does not include the spine.

∴ The fourth answer choice does NOT match its description.

Hence, the region that does not match its description is the fourth answer choice which is Abdominal region: spine

Learn more here: brainly.com/question/11504303

8 0
1 year ago
Which equation describes a reduction?
strojnjashka [21]

Answer:

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Explanation:

reduction is the gain of electrons and this is the only option which fits the definition.

8 0
3 years ago
Read 2 more answers
The chemical symbol of sodium is<br>​
ivolga24 [154]

Answer:

Na

Explanation:

6 0
3 years ago
Use the following information S(s)+O2(g)→SO2(g)S(s)+O2(g)→SO2(g), ΔH∘ΔH∘ = -296.8kJkJ SO2(g)+12O2(g)→SO3(g)SO2(g)+12O2(g)→SO3(g)
Sedaia [141]

Answer: The ∆Hf is -384.7kj/mol

Explanation:

H2O +SO3-----H2SO4

-285.8 +(-98.9------- -384.7kj/mol

4 0
3 years ago
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