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
Contact [7]
3 years ago
13

In which of the following is the number of electrons the ion contains given correctly

Chemistry
1 answer:
larisa [96]3 years ago
8 0

Answer:

B. K+ has 18 electrons

Explanation:

  • Ions are formed when atoms of element gain or loose electrons.
  • <em><u>When an atom looses electrons it forms a positively charged ion and when an atom gains electrons it forms a negatively charged ion.</u></em>
  • Metal atoms such as potassium, magnesium and aluminium looses outer most electrons to positively charged ions.
  • <u>Potassium atom has 19 electrons, 19 protons, with an electronic configuration of 2 : 8 : 8 : 1.</u> <u><em>To form an ion, K looses an electron to form a positively charged potassium ion (K+) with 18 electrons and 19 protons and an electronic configuration of 2:8:8.</em></u>
You might be interested in
What are some benefits that come from volcanoes?
nataly862011 [7]

Answer:

Volcanoes cool off the earth by emitting heat from its interior. They also add islands and for example, Hawaii was created / is made out of volcanoes. The deposits from volcanoes can also be used for building materials. Volcanic explosions have caused the atmosphere and oceans to form. Volcanic deposits also create land which is fertile.

7 0
3 years ago
You are in a laboratory creating a new chocolate bar. You want to create the sweetest chocolate bar by maximizing the sugar conc
svetoff [14.1K]
Water helps dissolve sugar
3 0
3 years ago
Read 2 more answers
Which of these describes a Mole in Chemistry?
olya-2409 [2.1K]

Answer: Thus the correct option is  D. All of the above describe a mole

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass in grams.

1 mole of every substance contains avogadro's number 6.023\times 10^{23} of particles.

Mole is the S.I unit for measuring the amount of substance. It is often used to measure large number of particles.

Thus the correct option is  D. All of the above describe a mole

5 0
2 years ago
Reactivity, flammability, and the ability to rust are types of _________.
vaieri [72.5K]

Answer:

stink

Explanation:

8 0
2 years ago
Read 2 more answers
How many grams of ammonia (NH3) can be produced when 25 g of nitrogen gas reacts with 28 grams of hydrogen gas
Elis [28]

Answer:

34 g of NH₃

Explanation:

7 0
3 years ago
Other questions:
  • Which would be most suitable for measuring 2.7 mL of ethanol for addition to a reaction with acidified dichromate?
    6·1 answer
  • 8.89 L of hydrogen gas is collected at 38.8 °C. Find the volume the gas will occupy at -39.9 °C if the pressure remains constant
    7·1 answer
  • Calculate relative mass of chlorine and boron by the help of given data Only 30 mins are left
    14·1 answer
  • Is it possible for a balloon with an initial pressure of 200.0 kPa to naturally expand to four times its initial volume when the
    7·1 answer
  • A buffer contains 0.18 mol of propionic acid (C2H5COOH) and 0.26 mol of sodium propionate (C2H5COONa) in 1.20 L. What is the pH
    15·1 answer
  • How does an ionic bond form
    10·1 answer
  • According to most scientists, what is the ultimate cause of most mass extinctions? a) Overhunting B) The evolution of new specie
    7·1 answer
  • An atom has atomic number 20, in which group and in what period is this atom located?
    8·1 answer
  • How many atoms are there in 7.80 moles of germanium
    7·1 answer
  • Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!