Word Bank: chemical
climate
dissolve
erosion
permeable
rock surface area water
1. When weathered materials turn into a new substance,
occurred.
weathering has
2. A rock that is
weathers more quickly due to open spaces within the rock.
3. Increasing the
of a rock by breaking it into smaller pieces will make
weathering happen much faster than leaving it as one large rock.
4. The speed at which a rock weathers depends upon the type of
the rock is found in.
and the
rocks with
5. Plant roots hold soil in place, crack rocks with strength of their roots, and
a weak acid.
It can dissolve almost
6. The most important agent of chemical weathering is
anything when given enough time,
7.
is the movement of rock particles by wind, water, ice or gravity.

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.

lol for the pointsss

answer carbon and three oxygen atoms;