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3 years ago

Atomic radii DECREASES as you move across a period. Why?

Chemistry

1 answer:

Lelechka [254]3 years ago

8 0

Explanation:

As you move across a period, you gain more electrons and become more electronegative. The electrons become very attracted to the protons in the nucleus. This causes the electrons to become closer to the nucleus, decreasing atomic radii and increasing density.

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What happened to the sound as vibration of an object increase in strength

svlad2 [7]

Answer:

A.The sound becomes louder.

And

C.The sound waves get further.

Explanation:

Louder the sound it will travel long.

5 0

2 years ago

Ionic formula for sodium oxide

Bas_tet [7]

The ionic formula of sodium oxide would be Na20

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3 years ago

Which element am I? Give my symbol ONLY! What a robber says as he's running away!

Olin [163]

Answer:

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Explanation:

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3 years ago

Read 2 more answers

Is the equation balanced? Why or why not?

anygoal [31]

Answer:

Yes because the law of conservation of matter is followed. There are equal numbers of atoms of all elements in the

reactants and products.

Explanation:

A balanced equation conform to the law of conservation of matter. While unbalanced equation suggests that matter has been created or destroyed.

Na3PO4 + 3KOH —> 3NaOH + K3PO4

A careful observation of the above equation proved that the equation is balanced is balanced because there are equal numbers of atoms of all elements in the

reactants and products.

8 0

3 years ago

Atoms of different chemical elements can be differentiated based on the number of.

Alona [7]

The atoms of different chemical elements can be differentiated based on the number of protons.

Each chemical element is differentiated by his number of protons. This number of protons is also knowing as atomic number and it is represented by the letter (Z).

The atomic number represented the number of protons in the nucleus of an element. For example:

The element that has only 1 proton in his nucleus is Hydrogen atom.
The element that has 2 protons in his nucleus is Helium atom.

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

Learn more about the atom at: brainly.com/question/17545314

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3 0

1 year ago