Answer and explanation:
On a flat, smooth surface, such as a flat mirror, all rays that strike the same direction will be reflected at the same angle.
Parallel rays that fall on a flat surface will remain parallel after reflection. The reflection on these smooth surfaces is called specular reflection.
When the surface is irregular, such as a curved or rough surface, the rays that appear at different positions on the surface arrive at different angles of incidence, because there are normal changes along the surface.
The angle of reflection remains the same as that of incidence, but they are reflected at different angles for those looking at the surface. This type of reflection is called diffuse reflection.
atomic number of elements are the number of protons
in neutral atoms number of protons are equal to number of electrons
electrons are responsible for the chemical bonding in atoms
bonding depends on the number of valence electrons in the outermost shells.
atom A with 11 protons have 11 electrons, electronic configuration is - 2,8,1
atom B with 17 protons have 17 electrons, electron configuration is - 2,8,7
A has 1 valence electron and B has 7 valence electrons
therefore A prefers to give away its one valence electron and have a complete outer shell and B prefers to take in that one electron from A to become a complete octet.
The type of bond is an ionic bond formed by the transfer of electrons from one species to another species
answer is ionic
Answer:
Mixing colored lights & mixing colored paints. The primary colors of light are also known as the additive colors, because, when you add these three colors of light (red, green and blue) your brain perceives white light. The primary colors of paints, however, are known as subtractive colors.
Explanation:
<em>Your </em><em>well-wisher</em>
Answer:
So if this is about chemical equations. You have 3 steps.
Step 1.- Count each type of atom in reactants and products.
Step 2.- Place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances.
Step 3.-Repeat steps 1 and 2 until the equation is balanced.
Explanation:
The heat of vaporization is =924.71 j/g
<em><u>explanation</u></em>
<u><em> </em></u>Heat of vaporization is amount of heat require to vaporize 1 gram of a substance.
Heat of vaporization required is therefore=8720 joules/9.43 grams=924.71 j/g