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aev [14]
3 years ago
12

What trend does the first ionization energy follow, going down the periodic

Chemistry
2 answers:
-Dominant- [34]3 years ago
6 0

Answer:

C. The first ionization energy decreases because the outermost

electron is farther from the nucleus.

Explanation:

Ionization energy trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

Ionization energy trend along period:

As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required.

AleksandrR [38]3 years ago
6 0

Answer:

C

Explanation:

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(b) difference between metalloids and alloys​
blsea [12.9K]

Answer:

<u>Metalloid -</u>

A metalloid is a chemical element with properties intermediate between those of typical metals and nonmetals

<u>Alloy</u> -

An alloy is a mixture of metals or a mixture of a metal and another element. Alloys are defined by a metallic bonding character.

5 0
2 years ago
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Where are people mostly exposed to chemicals?
Vlad [161]

Answer:

people are mostly exposed to chemicals through their nose, mouth, eyes, and ears

Explanation:

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This might not answer what you were looking for but the other answer covered it pretty well so I thought I'd give you another angle to the question!

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4 0
3 years ago
Which of these statements is correct? a. Particles in a suspension will settle out if left undisturbed. b. A solution is heterog
tatuchka [14]

Blood. It is discrete cells in saline solutuion. The cells are free to move thru the plasma, or you wouldn't have blood flow, or oxygenation, and you would die. Blood is defined as liquid, not jello.


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4 0
3 years ago
BRAINLIEST WITH THE RIGHT ANSWER
DENIUS [597]

Answer: All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.

4 0
2 years ago
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Hey y’all, I’m growing a plant for science class but I need some questions about the plant, can someone please give me atleast 3
kirza4 [7]

Answer:

What four things do all plants need?

What are the parts of the plant?

What does the root do for the plant?

What does the stem do for the plant?

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The plant parts that take in water and minerals from the soil are?

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Explanation:

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6 0
3 years ago
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