how many ways can 4 people be seated in a row containing 4 seats

In potassium (Z=19) and calcium (Z=20), electrons enter the 4s-orbitals in accordance with the fact that 4s-orbital is slightly lower in energy than 3d-orbital. ..

In potassium (Z=19) and calcium (Z=20), electrons enter the 4s-orbitals in accordance with the fact that 4s-orbital is slightly lower in energy than 3d-orbital. With scandium (Z=21), 3d-subshell comes into use and from scandium to zinc, this subshell is gradually filled up. The ..

Second Row Elements - In lithium (Z =3), the third electron goes to the next 2s orbital. In Beryllium (Z = 4), the fourth electron fills 2s orbital and in boron (Z = 5), the next electron goes to the next available 2p orbital. In carbon, the sixth electron is also to go into the..

Willa cooked 1 1 2 pounds of chicken for 4 people. How much chicken did each serving contain, if all 4 servings contained the same amount of chicken? => 3 8 or 8 3 or 6 or 1 8..

In a survey conducted, 62% people prefer watching a football match from home. Find the probability that four persons selected at random prefer watching football from home. => 0.38 or 0.148 or 2.52 or 0.238..

Lee planted 44 rose plants in 4 rows in his garden. If there were equal number of rose plants in each row, how many rose plants were there in each row? => 40 or 11 or 48 or 50..

Question: You read in the newspaper that a cluster of trees in a park are being cut down to make place for a huge 5 star hotel. You are against it and feel that other places can be found for this purpose. Taking ideas from the Unit 'Environment' and using your own ideas, write a letter to the..

Find the number of ways Jim can choose a green or a red colored shirt that comes in four sizes, small(s), medium (m), large(l), and extra large(xl). => 9 or 7 or 6 or 8..

In a flower show there is a roses section and a marigolds section. In the roses section there are 4 rows of flower pots with 6 roses in each row In the marigolds section, there are 4 rows of flower pots with 7 marigolds in each row. H..

These animal seat, trample the young plants, and damage their trunks and root..