Chemistry, 24.08.2019 18:20 Jael2

Explain whether smoke filling up a room is diffusion or not.

Answers: 2

Show answers

Answers

yes it is diffusion ..
explanation :
diffusion is the movement of particles from high concentration to low concentration ..
as the smoke rises at one corner of the room soon it spreads all over the room which is simply diffusion ..

Answer from: yuppcami9929

Yes this is diffusion because diffusion is the movement of particles from high concentration to low concentration, so when smoke go up in one corner then the smoke goes all over the room which is diffusion.

Answer from: Quest

he would use the colour black

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.

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 10:30, angemango3423

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Answers: 1

continue

Chemistry, 23.06.2019 15:00, alondrabdiaz586

This is a portion of the earths surface that may be far from tectonic plates boundaries yet experiences volcanism due to a rising mantle plume or some other cause

Answers: 3

continue

Chemistry, 23.06.2019 19:00, justaguy15

Explain how scientific advancements have lessened the effects of hazardous events on society.

Answers: 1

continue

Chemistry, 23.06.2019 21:00, briannaalvarado256

What will the cells in step 4 mature to become?

Answers: 3

continue

You know the right answer?

Explain whether smoke filling up a room is diffusion or not....