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
Virty [35]
3 years ago
9

Atoms bond to other atoms through their electrons. The following analogy will be used to help us understand how this occurs. Ima

gine that the atoms of different elements are like kids coming to school. Each of these "kids" come to school with a specific number of crayons. These crayons represent the outer electrons for that atom. Explain how the elements (kids) share, gain, lose their crayons (electrons) and bond to another so that they achieve stability.
Chemistry
1 answer:
horsena [70]3 years ago
4 0

Answer:

Explanation:

All atoms (except for group 0 elements) of elements tend to achieve stability by having there outermost shell completely filled; achieving an octet configuration. During chemical bonding, atoms tend to achieve stability majorly in one of the two ways below

1) Ionic or electrovalent bonding: This involves the transfer of electrons from a positively charged ion (cation) to a negatively charged ion (anion). Here, no molecule is formed. For instance, in the formation of a sodium chloride (NaCl) salt. Sodium ion donates the single electron on it's outermost shell (to achieve it's octet configuration) to chloride ion (which needs just one more electron in it's outermost shell to achieve it's octet configuration).

Na⁺ + Cl⁻ ⇒ NaCl

2) Covalent bond: This involves the sharing of lone pair of electrons between two atoms to form a molecule. For example, the outermost shell of an oxygen atom, has two single electrons (that are not in pair), these single electrons can form covalent bond independently with hydrogen atoms (to form water) that also have just one electron in their shells. Hence, at every "covalent bonding site", an electron from oxygen and an electron of hydrogen is shared between the two atoms in order to achieve a stable configuration (Here, we have two "covalent bonding sites").

You might be interested in
What would happen if grasshoppers population increased
hram777 [196]
Their prey would decrease
4 0
3 years ago
A sample of gold (Au) has a mass of 45.39 g.
professor190 [17]
<span>1. What is the molar mass of gold?
Molar mass is a unit that expresses the mass of a molecule per one mol. The molar mass can be obtained by adding the neutron with the proton of the atoms. Gold has atomic number 79 so the proton is 79. The number of the neutron is 118. Then the molar mass would be: 79 + 118 = </span>197 g/mol<span>


</span><span>2. Calculate the number of moles of gold (Au) in the sample. Show your work. 
</span>In this question, you are given the mass of the gold and asked for how many moles the sample has. To find the number of moles you just need to divide the weight by the molar mass.
For 45.39 grams of gold, the number of moles would be:
45.39 / (197g/mol)= 0.23 moles


3. Calculate the number of atoms of gold (Au) in the sample. Show your work.Moles is unit of a number of molecules but 1 mol doesn't represent 1 molecule. The number of atoms can be obtained by multiplying the number of moles with Avogadro number. The calculation would be:
0.23 moles * (6.023 * 10^23 molecules/mol)= 1.387 * 10^23 molecules
8 0
3 years ago
Ammonia and oxygen react to form nitrogen monoxide and water, like this:
olchik [2.2K]

4NH3+5O2 <=>4NO + 6H2O

Using the definition of Kp, we have
Kp=(Pno^4*Ph2o^6)/(Pnh3^4*Po2^5)
where Pno=partial pressure of NO, etc.

The numerical value for a given temperature can be evaluated when the actual partial pressures are known.
6 0
3 years ago
Which ancient African Kingdom is located in western Africa? ​
NISA [10]

Answer:

Ghana Empire is was a kingdom in western Africa.

3 0
3 years ago
What is biochemistry​
lana66690 [7]

Answer:

Branch of science concerned with the chemical and physicochemical processes and substances that occur within living organisms.

7 0
2 years ago
Other questions:
  • The atomic mass of an element is equal to the:
    8·2 answers
  • What is the formula of titanium(IV) bromide?
    14·1 answer
  • Missy Mae is given an unknown white ionic solid which contains one of the cations Na+, K+, Ca2+ and one of the anions Cl-, NO3-
    5·1 answer
  • 1.
    9·2 answers
  • How many electrons do the following have?<br> Gold<br> Iron<br> Copper<br> Uranium
    13·1 answer
  • Which are functions of the stomata in the leaves of seed plants? Check all that apply.
    13·2 answers
  • After a lightning storm, the Rodriguez family notices the TV no longer works.
    15·1 answer
  • How did the mass change when the copper coin was made to look silver?
    10·1 answer
  • Entir<br> What is the striking back of<br> the<br> bunsen-<br> burner?
    8·1 answer
  • Two trains, A and B are moving at a speed of 20 km per hour
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!