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Talja [164]
3 years ago
13

HELP ME PLZ!!! I really dont know this!!! What characteristic of metals makes them good electrical conductors? -They have mobile

protons. -They have mobile valence electrons. -Their crystal structures can be rearranged easily. -They have mobile cations.
Chemistry
1 answer:
Natasha2012 [34]3 years ago
6 0

Answer:

To have a high electrical conductivity, a normal metal should have mobile valence electrons and a long electron mean free path.

Explanation:

A long mean free path means that the electron goes a long distance between scattering events.

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Which of the following trends can be identified on the periodic table?
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Answer:

D) atomic radii increase from top to bottom of a group

Explanation:

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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.

Other options are incorrect because,

A) atomic radii increase from left to right across the period

Correct = atomic radii decreases from left to right across the period

B) ionization energy increases from top to bottom within a family

Correct =  ionization energy decreases from top to bottom within a family

C) electronegativity decreases from left to right across a period

Correct = electronegativity increases from left to right across a period

8 0
3 years ago
Which of these elements would be assigned the highest electronegativity value? Br K Si Ba
Mashutka [201]
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7 0
3 years ago
Which of the following is most likely to lose electrons in an ionic compound?
ANTONII [103]

Answer:

a. Lead (Pb)

Am 100% sure

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4 0
2 years ago
How many electron are in the outer shell of an neutral atom of 14 atomic number
Anon25 [30]
I think there is 4 electrons in the outer shell of 14 atomic number. If I'm wrong, know that I'm not very good.
5 0
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See the photo an answer fast plzzz
Ierofanga [76]

Answer:

I think it's (B) decrease

7 0
2 years ago
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