Chemistry, 18.09.2019 21:30 gchippewa81

Which piece of evidence would suggest an unknown substance is an ionic compound?

Answers: 1

Show answers

Answers

Ionic substance is a compound that comprises elements that are glued together by a force called ionic bonding. Ionic boding is an electrostatic force between ions.

Evidence:
Unlike metallic substances, ionic compounds (in it's solid state) do not aid the transfer of electrons. In other words they do not conduct electricity. It is not true when we talk about ionic compounds dissolved in water. In liquid form or in solution form, they now display conductive abilities unlike when it is in its solid form.

Answer from: Quest

assuming that your periodic table has eighteen columns, you should highlight the four elements in the third column from the left of the table.

explanation

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the $3d$ have energy higher than those in the $4 s$ orbital while lower than those of the $4 p$ orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the $4s$ orbital is therefore filled right after $3p$ orbitals and before $3 d$ orbitals.

potassium has electron configuration $[\text{ar}] 4 s^{1}$ and calcium $[\text{ar}] 4 s^{2}$ . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration $[\text{ar}] 4 s^{2} \; 3d^{1}$ and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the $ns^{2} \; (n-1) p^{1}$ and should be highlighted as well.

Answer from: Quest

Of course: ) what’s your name ?

Another question on Chemistry

Chemistry, 22.06.2019 06:00

What type of electromagnetic radiation has a shorter wavelength than blue light

Answers: 2

Answer

Chemistry, 22.06.2019 09:30

Which formula can be used to calculate the molar mass of hydrogen peroxide

Answers: 1

Answer

Chemistry, 22.06.2019 10:40

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant

Answers: 2

Answer

Chemistry, 22.06.2019 21:30

What is the effect of returning nuclear reactor cooling water back into bodies of water?