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Anika [276]
3 years ago
11

An a transition metal with 91 protons and electrons?

Chemistry
2 answers:
ser-zykov [4K]3 years ago
6 0
Protactinium

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grin007 [14]3 years ago
3 0

Answer:

Protactinium

Explanation:

the atomic number lines up with the number of protons and electrons an element has.

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The major reason for chemical bonding is _____.. . . for atoms to gain the stability of the octet. to form a substance in low su
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In my opinion, the best answer among the choices listed above is the first option. The major reason for chemical bonding is <span>for atoms to gain the stability of the octet. In general, chemical reactions happen in order for substances achieve stability or appropriately achieve equilibrium.</span>
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Density is anything that has mass and takes up space.<br><br> A. True<br><br> B. False
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True because it is correct
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How does the chemical formula for the sulfite ion differ from the chemical formula for the sulfate ion?
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Answer:

Sulfite contains 3 oxygens and sulfate contains 4 oxygens

Explanation:

6 0
3 years ago
Completion
Snowcat [4.5K]

Answer:

  1. Compress
  2. Fixed
  3. Melts
  4. Melting Point
  5. Freezing Point
  6. High
  7. Crystalline
  8. Lattice
  9. Unit cell
  10. Amorphous solids

Explanation:

Solids tend to be dense and difficult to <u>compress.</u>

They do not  flow or take the shape of their containers, like liquids do, because  the particles in solids vibrate around <u>fixed</u> points.

When a solid  is heated until its particles vibrate so rapidly that they are no longer  held in fixed positions, the solid <u>melts</u>.  

<u>Melting point</u> is the  temperature at which a solid changes to a liquid. The melting and <u>freezing point</u>  of a substance are at the same temperature.

In general,  ionic solids tend to have relatively <u>high</u>  melting points, while  molecular solids tend to have relatively low melting points.

Most  solids are <u>crystalline</u>

The particles are arranged in a pattern known  as a crystal <u>lattice</u>

The smallest subunit of a crystal lattice is the <u>unit cell</u>  

Some solids lack an ordered internal structure   and are called <u>amorphous solids.</u>

7 0
3 years ago
Cavalent bonds what are they?
motikmotik

Answer:

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Explanation:

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

I hope this helps!

THIS ANSWER WAS TAKEN FROM WIKI. DO NOT REPORT ME FOR PLAGIARIZING PLEASE! THANK YOU.

5 0
4 years ago
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