1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
____ [38]
3 years ago
12

The atomic number of an atom is always equal to the number of its what ??

Chemistry
2 answers:
Marianna [84]3 years ago
3 0
The answer is protons and electrons! Hope this helps :D
yawa3891 [41]3 years ago
3 0
It’s always equal to the amount of protons. Neutrons are only used for the mass. Electrons change the charge, so they’re not always the same.
TLDR; Protons only
You might be interested in
Plzzz help do your best to answer these questions
vovikov84 [41]

The empirical formula is the simplest formula of a chemical compound.

To find the empirical formula, we take the following steps;

  • Divide the percentage by mass of each element by its relative atomic mass.
  • Divide the quotient of each by the lowest value obtained instep 1 above
  • Write the result of step 2 above as the subscript following each atom.

1) O - 88.10/16,      H - 11.190/1

  O - 5.5,               H - 11.19

  O - 5.5/5.5,        H - 11.19/5.5

  O -  1,                 H - 2

Empirical formula = OH2

2) C - 41.368/12  H - 8.101/1,   N - 32.162/14,   O - 18.369/16

   C - 3,               H - 8,           N - 2,                  O - 1

   C - 3/1,            H - 8/1          N - 2/1                 O - 1/1

    C - 3,             H - 8,           N - 2,                   O - 1

Empirical formula = C3H8N2O

To obtain the molecular formula where n = number of atoms of each element;

Molecular weight = 174.204 g/mol

[ 3(12) + 8(1) + 2(14) + 16]n = 174

n= 174/88

n = 2 (to the nearest whole number)

Hence, we have;

[C3H8N2O]2

The molecular formula is C6H16N4O2

3)  C - 19.999/12,  H - 6.713/1,   N - 46.646/14,   O - 26.641/16

    C - 2,                H - 7,            N -  3,                 O - 2

    C - 2/2,            H - 7/2,         N -   3/2,             O - 2/2

    C - 1,                H - 4,            N -  2,                  O - 1

Empirical formula - CH4N2O

brainly.com/question/1363167

5 0
3 years ago
How cows are contributing to climate change.​
AnnyKZ [126]

Answer:

they are apart of the life cycle

Explanation:

7 0
3 years ago
Wht are the trends for electronegativity and ionzation energy similar​
FinnZ [79.3K]

Answer:

Along period electronegativity and ionization energy increases.

Along group electronegativity and ionization energy decreases.

Explanation:

Along period:

As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. Thus the attraction of the atoms for valance electrons increases. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required, and electronegativity also increases.

Along group:

As we move from top to bottom in periodic table the atomic sizes increases.The electrons are added in next energy level in every next element. Thus the valance electrons farther away from the nucleus and hold of nucleus becomes weaker,  because of weak nuclear attraction atomic radii increases and electronegativity and ionization energy decreases.

3 0
2 years ago
Why is cellular respiration essential for homeostasis? (4 points)
omeli [17]
It is to create energy that the cell can use. it takes in oxygen to break down food molecules to get cellular energy for cell function
3 0
2 years ago
Gerry is looking at salt under a powerful microscope and notices a crystalline structure. What can be known about the salt sampl
Phoenix [80]
Mined salt has sharp edges v s sea salt with rounded edged
4 0
3 years ago
Read 2 more answers
Other questions:
  • 1. The Great Pacific Garbage Patch is the world's largest garbage dump. How big is it?
    7·1 answer
  • What are the major species in solution when solid ammonium bromate is dissolved in water?
    14·1 answer
  • The inner four planets of our solar system are called the __________ planets and the next four are called the __________ planets
    6·1 answer
  • Extracting oil from shale deposits a has been initiated on a large scale in the United States and will soon surpass Canada's pro
    13·1 answer
  • Iron(II) is available to bond with chloride ion. How many of each type of ion will bond to form an ionic compound?
    7·1 answer
  • What is the molar mass of the anhydrous
    15·2 answers
  • 1. How many ATOMS of boron are present in 2.20 moles of boron trifluoride ? atoms of boron.
    7·1 answer
  • Help I WILL AWARD BRAINLIEST
    15·2 answers
  • Write the complete nuclear symbol for a nucleus of oxygen with 8 protons & 10 neutrons?
    15·1 answer
  • Your friend the archaeologist, who studies the ancient human past, has asked you to find a numerical date for some hominid artif
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!