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morpeh [17]
3 years ago
9

Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element's properties to be

predicted based on general periodic trends. One of these trends, electron affinity, increases up a group and to the right along a period and can be defined as the ______________.

Chemistry
1 answer:
neonofarm [45]3 years ago
3 0

Answer:

The change in energy when a neutral atom in the gaseous state adds an electron to form a negative ion.

Explanation:

That is, it is the energy involved in the reaction

X(g) + e⁻ ⟶ X⁻(g)

For most elements, the electron affinity is negative.

However, there are two major exceptions  — the values are positive for the elements of Groups 2 and 18 (note the troughs in the graph below).

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A moist red litmus paper is used for testing ammonia gas ,why​
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Answer:

when the red litmus paper is placed in a jar of ammonia, the red litmus paper turns into blue as ammonia gas is basic in nature. It confirms the alkalinity of the ammonia gas.

6 0
3 years ago
Is an example of the carbon cycle occurring slowly?(1 point)
o-na [289]

Decomposition is a part of the carbon cycle that occurs slowly hence  movement of carbon dioxide into the atmosphere when bacteria decomposes dead matter is a slow part of the carbon cycle.

<h3>What is the carbon cycle?</h3>

The carbon cycle is part of the biogeochemical cycles that exist in nature. It refers to the movement of carbon in the ecosystem. The carbon cycle cuts across the air, the land and the water bodies.

The process in the carbon cycle that occurs slowly among the options is the movement of carbon dioxide into the atmosphere when bacteria decomposes dead matter.

Learn more about carbon cycle: brainly.com/question/1627609

7 0
2 years ago
At which point on the roller coaster will the car have the greatest amount of Kinetic energy?
Elena-2011 [213]
I’m going to say the answer is most likely X because memetic energy is energy being used at that moment. Because the coaster is going fastest at X we can assume that the answer is X
4 0
3 years ago
A. Identify the structure drawn below.
nadya68 [22]

Answer:

Hexane

Explanation:

You have a carbon structure with only single bonds.  This means that the name will end in -ane.

There are 6 carbon atoms.  This means that the name will begin with hex-.

The structure is hexane.

7 0
3 years ago
Why was meteorology such a late developer compared to other branches of science?
Sedaia [141]

Answer:

Because of the difficulties of measuring the atmosphere's properties above the earth's reachable surface

Explanation:

Hello,

In this case, meteorology is the branch of science studying the atmosphere in its weather processes and forecasting and it had a late development because of the difficulties of measuring the atmosphere's properties above the earth's reachable surface. We cannot forget that even nowadays, it is very difficult to predict upcoming weathers with the 100 % assurance and with many days in advance.

Best regards.

3 0
4 years ago
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