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Kaylis [27]
3 years ago
15

Which subatomic particle determines the identity of an atom

Chemistry
1 answer:
Gelneren [198K]3 years ago
6 0

The Protons determine the identity.

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The Aufbau Principle describes that
Nadusha1986 [10]

Answer:

electrons fill lower energy levels first before occupying higher energy levels.

Explanation:

The Aufbau's principle describes that electrons fill lower energy levels first before occupying higher energy levels.

In writing the electronic configuration of atoms, the Aufbau's principle is one of the most important principles to consider.

It states that "sublevels with with lower energies are filled up before those with higher energies".

Sublevels do not fill up in numerical order.

4 0
3 years ago
Calculate the average atomic mass of antimony
densk [106]

Answer:

Wow, now this one is a hard one, took me quite a while to figure it out but here it is

The abundances of the two isotopes is:

Antimony-121 = 57.2%

Antimony-123 = 42.8%

Explanation:

4 0
3 years ago
As you move from left to right across a period, what happens to the atomic radil?
egoroff_w [7]

Answer:

Moving Across a Period

Moving from left to right across a period, the atomic radius decreases. The nucleus of the atom gains protons moving from left to right, increasing the positive charge of the nucleus and increasing the attractive force of the nucleus upon the electrons

4 0
3 years ago
When one form of energy is converted to another form in any physical or chemical change, energy input alwasy equals energy outpu
aliya0001 [1]
In the context of chemistry, yes. Energy input is always equal to the energy output.
5 0
2 years ago
The size of the chosen symbols on a graph may be used to indicate the:
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Uncertainty of the data  hope its help you

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3 years ago
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