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Svetlanka [38]
3 years ago
15

What does the atomic numbrr represent on the periodic table?​

Chemistry
1 answer:
lesya692 [45]3 years ago
4 0

Answer:

Explanation:

The atomic number tell us the number of protons and neutrons in the nucleus of an atom. in other words ,each element has a unique number that identifies how many protons are in one atom of that element example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.

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At this lower concentration, about how many extra hydrogen bonds would be needed to hold a and b together tightly enough to form
Scrat [10]

2..............................................

8 0
3 years ago
Arrange the elements in order of increasing ionization energy. Use the
UNO [17]

Answer:

Gallium, Phosphorus, Chlorine, Fluorine

Explanation:

Arrange the elements in order of increasing ionization energy. Use the periodic table to identify their positions on the table.

Drag each tile to the correct box.

Tiles

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Sequence

5 0
3 years ago
Read 2 more answers
What happens to a glass of sugar solution when sugar is added to it?
galina1969 [7]

Answer:

The molarity of the solution increases.

Explanation:

Molarity is the measure of the concentration of the solute in the solution. In this case, the solvent is the sugar solution and the solute is the sugar.

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This means that the answer is the third choice: The molarity of the solution increases.

The answer would not be the first or second choice because there isn't anything in the question that implies water. It just says sugar solution.

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7 0
3 years ago
Read 2 more answers
Help me please !! How to solve it ??
snow_tiger [21]
1st one= CaO +H2O=Ca(OH)2
product side-
Ca=1
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Reactant side-
Ca=1
O=2
H=2
The first one is balanced for you 
There is 1 calcium on each side 2 oxygens on each side and 2 hydrogens on each side


6 0
3 years ago
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tamaranim1 [39]
The answer is C. They lower the activation energy of an elementary step of a reaction
This makes the reaction rate to increase since less energy is required to make a reaction occur.
3 0
3 years ago
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