By default, your numerical entry is scored as correct if it is within 1% of the correct answer. a rule of thumb is always to enter at least 3 digits for numerical questions. if the correct answer is 7.80009, which of the following entries would be counted as correct? that is, which entries are within webassign's default tolerance? (select all that apply.)
7.80 7.6363 7.6 7.96 7.730 7.8703

The entries that are within the default tolerance are ; ( A, E and F )

Given that the numerical entry within 1% of the correct value is a valid entry.

First step : Determine the allowable minimum and maximum values

Minimum value = ( 7.80009 ) - ( 1% * 7.80009 )

                          = 7.7220891

Maximum value = ( 7.80009 ) + ( 1% * 7.80009 )

                          = 7.8780909.

∴ The allowable range where the correct answers should fall in is ;

( 7.7220891,   7.8780909 )

And The numbers that fall within the allowable range are ; 7.80 , 7.730 and 7.8703.

Hence we can conclude that the entries within the default tolerance are; 7.80 , 7.730, 7.8703 .

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

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 have energy higher than those in the orbital while lower than those of the orbital.

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

potassium has electron configuration and calcium . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration 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 and should be highlighted as well.

gold is my favorite solid.