Answer:
periodic table`~
Explanation:
period: a row of the periodic table. Properties of the elements are periodic, meaning that they repeat after a specific interval. Elements in the same period have their highest energy electrons in the same principal energy level.
group (family): a column of the periodic table. Elements in the same group have the same number of valence electrons, and therefore have similar chemical and physical properties.
The arrow is called a
What molecule makes up 3/4s of the surface of Earth?
A: C6H12O6
B:CO2
C: H2O
D: NaCl
Je suis presque sûr que c'est C: H20
Gravitational potential energy is energy due to
being in motion
being on the ground
height above ground
doing work
Answer:
being on the ground
Explanation:
Answer:
Gravitational potential energy in terms of work done against gravity. ... We define this to be the gravitational potential energy (PEg) put into (or ... Figure 2. The change in gravitational potential energy (ΔPEg) between points A and B
Explanation:
hope this helps