We remember from chemistry lessons: what is the “atomic number” determined by the number of protons of the element, and how is it found?
May 27, 2023
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We used to think that the atom was the smallest building block of matter, but today we know that the atom; It consists of three subatomic particles called
We used to think that the atom was the smallest building block of matter, but today we know that the atom; It consists of three subatomic particles called protons, electrons and neutrons. The nucleus, the center of the atom, consists of positive protons and uncharged neutrons. The negatively charged electron is located around the nucleus. We understand this So where is the atomic number in this? If you say, it’s actually right in the middle.
What we call the atomic number is actually the number of protons of an element and thus the number of electrons equal to it in the neutral state. It is the atomic number that makes matter matter. The atomic number next to each element in the periodic table of chemical elements is unique and cannot be changed. If it is changed, it will already turn into another element. What is the bride’s best atomic number, how to find it Let’s take a closer look at that.
Let’s start with a basic definition; What is Atomic Number?
The atomic number, represented by the symbol Z, refers to the number of protons in the nucleus of each chemical element. Since the number of electrons and protons in an atom in neutral state are equal, we can say that the number of protons, number of electrons and atomic number of a chemical element in neutral state are the same. Of course, these are ordinary elements, there may be different situations.
So, what exactly does the atomic number mean?
We opened the periodic table, we found the element iron, next to it is written 26; This means that the atomic number of the element iron is 26. In other words, there are 26 protons in an iron atom. For example, the atomic number of the element nitrogen is 7, that is, there are 7 protons in the nitrogen atom.
The atomic number, that is, the number of protons, is the basic element that makes that atom that atom. Let’s say we change the number of protons, another element emerges. Let’s say we change the number of electrons, we get an ion. Let’s say we change the number of neutrons, an isotope is created. In other words, an element’s atomic number is the most basic and unique characteristic by which we can identify that element.
So how do you find the atomic number?
We’d like to say you can find it at home, but the human eye hasn’t evolved to see subatomic particles yet. That’s the atomic number take the atom you want to know which element it is, You put it in a device called an atomic microscope or a quantum microscope and you start counting the protons.
Let’s say the atom you’re examining under a microscope has 26 protons, so you have the element iron. Let’s say the atom has 33 protons, so you have arsenic. It is possible to multiply such examples. In summary, the atomic number is found by measuring the number of protons in an atom.
What is the atomic number equal to?
The atomic number is equal to the number of protons and the number of protons is equal to the number of electrons in the neutral state. So how many neutrons does this atom have? Now let’s do the math; Let’s say you have calcium in your hand, the atomic number of calcium is 20, that is, the number of protons is 20. It is known that the relative atomic mass of calcium is 40. Now let’s subtract the atomic number from the relative atomic mass. ie 40 – 20 = 20. There are 20 neutrons in a calcium atom. You can apply this process to all chemical elements.
How does the atomic number increase?
In fact, there is no such thing as an increase in atomic number because All known elements have an atomic number and this number is fixed. As the number of protons in the atom increases, so does the atomic number. But this is an increase that we learn by counting. Of course, if you want to create an atomic reaction, change jobs.
All chemical elements in the periodic table according to their atomic numbers:
atomic number
symbol
Element
Relative atomic mass
An
H
Hydrogen
1.0079
2
He
Helium
4.0026
3
li
Lithium
6,941
4
are
Beryllium
9.0122
5
B
drill
10,811
6
C
Carbon
12.0107
7
N
Nitrogen
14.0067
8
HE
Oxygen
15.9984
9
F
Fluorine
18.9984
10
What
Neon
20.1797
11th
after
Sodium
22.9897
12
mg
Magnesium
24,305
13
To get
aluminium
26.9815
14
Si
Silicon
28.0855
15
P
Phosphorus
30.9738
16
S
Sulfur
32,065
17
cl
Chlorine
35,453
18
Ar
Argon
39,948
19
K
Potassium
39.0983
20
Approx
Calcium
40,078
21
sc
scandium
44.9559
22
Ti
Titanium
47,867
23
v
i’m vanda
50.9415
24
cr
chrome
51.9961
25
mn
manganese
54,938
26
Fe
Iron
55,845
27
co
Cobalt
58.9332
28
Ni
Nickel
58.6934
29
C
Buyer
63,546
30
Zn
Zinc
65.39
31
Go
Gallium
69,723
32
ge
Germanium
72.64
33
ace
Arsenic
74.9216
34
Like this
Selenium
78.96
35
bro
Bromine
79,904
36
kr
Krypton
83.8
37
rb
Rubidium
85.4678
38
sr.
strontium
87.62
39
Y
Yttrium
88.9059
40
Sr
Zirconium
91,224
41
note
Niobium
92.9064
42
before Christ
Molybdenum
95.94
43
tc
technetium
98
44
ru
ruthenium
101.07
45
Rh
Rhodium
102.9055
46
pd
palladium
106.42
47
Network
Silver
107.8682
48
CD
Cadmium
112,411
49
By
Indium
114,818
50
Mr.
look
118.71
51
z
Antimony
121.76
52
At
Tellurium
127.6
53
i
Iodine
126.9045
54
xe
Xenon
131,293
55
cs
cesium
132.9055
56
ba
Barium
137,327
57
la
lanthanum
138.9055
58
ce
Cerium
140.116
59
pr
Praseodymium
140.9077
60
Nd
neodymium
144.24
61
P.M
promethium
145
62
sm
Samarium
150.36
63
EU
europium
151,964
64
Gd
Gadolinium
157.25
65
phone
Terbium
158.9253
66
Tue
dysprosium
162.5
67
hi
Holmium
164.9303
68
private
erbium
167,259
69
tm
Thulium
168.9342
70
Yb
ytterbium
173.04
71
lu
Lutetium
174,967
72
HF
Hafnium
178.49
73
ta
tantalum
180.9479
74
W
Tungsten
183.84
75
Regarding
Rhenium
186.207
76
ox
Osmium
190.23
77
ir
Iridium
192.217
78
pt
Platinum
195,078
79
ouch
Gold
196.9665
80
hg
Mercury
200.59
81
TL
Thallium
204.3833
82
pb
Ball
207.2
83
A
Bismuth
208.9804
84
po
Polonium
209
85
Horse
Astatine
210
86
rn
Radon
222
87
Fri.
francium
223
88
ra
Radium
226
89
Hungry
actinium
227
90
E
Thorium
232.0381
91
father
protactinium
231.0359
92
YOU
Uranium
238.0289
93
np
neptunium
237
94
pu
Plutonium
244
95
am
americium
243
96
cm
curium
247
97
bk
Berkelium
247
98
cf
California
251
99
Husband
einsteinium
252
hundred
fm
fermium
257
101
md
Mendelium
258
102
No.
Nobelium
259
103
Lr
lawrenium
262
104
rf
Rutherfordium
261
105
db
dubnium
262
106
sg
seaborgium
266
107
bra
bohrium
264
108
hs
Hassium
277
109
mountain
meitnerium
268
Determined by the number of protons that chemical elements have What is atomic number and how to find it We’ve listed all the chemical elements in the periodic table according to their atomic numbers by answering curious questions like:
Ashley Johnson is a science writer for “Div Bracket”. With a background in the natural sciences and a passion for exploring the mysteries of the universe, she provides in-depth coverage of the latest scientific developments.