Answer:
18
Explanation:
The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups.
1,) C
2,) C
Hope this helps
Answer:4N
Explanation:
mass=4kg
Acceleration=1m/s^2
Force=mass x acceleration
Force=4 x 1
Force=4N
Answer:
F = 12.5N
Explanation:
Force (F) = Mass (m) x Acceleration (a)
F = ma
F = (2.5kg) x (5m/s^2)
F = 12.5N
Answer:
In chemistry, a nonmetal is a chemical element that is mechanically weak in its most stable form, brittle if solid, and usually gains or shares electrons in chemical reactions. There is no universal agreement on which elements are nonmetals; the numbers generally range from fourteen to twenty-three, depending on the criterion or criteria of interest.
