Answer:
Elements in a period have wide range of chemical properties.
Explanation:
- Period is the row of chemical elements's arrangement in the periodic table. It is numbered from 1 to 7.
- In period as we move towards right the atomic number of element constantly increases along with the change in chemical properties.
- As we move from left towards right in period, the valence electron number regularly increases in every element.
- This valence electron differs the reactivity of the elements.
Answer:
C: The electrons in the neutral object transfer onto a positively charged object.
Explanation:
In conduction, when we charge one object with another, both of them will now have the same type of charge. Thus, in conduction, a positive object is used to charge a neutral object, then it means that both objects become charged positively charged. Electrons are positive charges.
Thus electrons in the neutral object are transferred onto a positively charged object and so option C is right.
Hey can u give a little more detail?
The distance between two succesive crests of a wave corresponds to its wavelength, therefore the wavelength of this wave is

The frequency of a wave is the number of crests that passes through a given point in a certain time; therefore, for this wave it is:

And now we can calculate the wave speed, which is given by the product between the wavelength and the frequency: