Answer:
a colloid
Explanation:
Paint is classified a colloid
A colloid is a homogenous of two phases which are the dispersed phase and the dispersion medium.
The dispersed phase is analogous to the solute of the true solution while the dispersion medium is analogous to the solvent.
- The particles of colloids are larger than those found in a solution.
- Their particles do not settle on standing
- Their particles pass through ordinary filter paper
- Their particles do not pass through permeable membranes
Answer:
electrons
Explanation:
metals do what is called metallic bond
Answer:
A = The central core and is composed of protons and neutrons.
Explanation:
An atom consist of electrons, protons and neutrons. The neutrons and protons are present inside the nucleus, which is central core of atom and have positive charge. While electron is present out side the nucleus.
All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons.
The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.
Symbol= e-
Mass= 9.10938356×10-31 Kg
It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.
While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.
Symbol of proton= P+
Symbol of neutron= n0
Mass of proton=1.672623×10-27 Kg
Mass of neutron=1.674929×10-27 Kg
Answer:
Direct coupling
Explanation:
Direct coupling is sensitive to changes that occurs in temperature. It is electrical energy transfer using physical contact through a medium that is conductive.
It is useful in the interconnection of 2 circuits. This kind of coupling method can be done by a wire, a resistor or through mettalic bonding.
The valence electrons are in the s-orbital.