The correct answer would be C) Have the same number of protons.
Answer:
P3
Explanation:
Im pretty sure hope this helps
Answer;
Ge and As.
Explanation;
Elements Ge and As belong in the same period as krypton.
Each row of the periodic table is called the period.
Elements in each period have the same number of electron shells.
These elements in the same period do not have similar properties- the properties change greatly across every period. Krypton is in period four therefore all the elements in period 4 have four electrons shells.
Answer:
nine
There are nine orbitals in the n = 3 shell. There is one orbital in the 3s subshell and three orbitals in the 3p subshell. The n = 3 shell, however, also includes 3d orbitals. The five different orientations of orbitals in the 3d subshell are shown in the figure below.
Explanation:
ch 9 sorting material into groups
ch 10 change and reaction
ch 11 motion and measurement of distance
ch 12 electric current and circuits
ch 13 fun with magnet
ch 14 importance of air
ch 15 importance of water
ch 16 light, shadow and reflection
ch 17 wastes