Me with this 60 points,5-star rating, an and marked as branliest.

susan wondered why she heard less crickets in the fall than during the summer. she decided to investigate how temperature affects the chirping of crickets. susan hypothesized that if the temperature is decreased, then the number of chirps would decrease, then the number of chirps would decrease. she took 10 crickets and 10 containers and place a cricket in each one. she recorded the number of chirps each cricket made in one minute at a room temperature. susan gave all the crickets the same amount of food, water, and same type of container.

independed variable:

dependent variable:

hypothesis:

constants:

repeated trails:

control:

Independed Variable:

food, water, container

dependent variable:

temperature

Hypothesis:

That there are less chirps if temperature is lower

constants:

food, water, container

repeated trials:

10 crickets and 10 containers, 10x accurate than using 1 and 1

control:

Crickets and containers

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.