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
Not 100% sure but I think it’s Nucleic acid
Answer:
The answer is C. Gamma rays are the highest energy electromagnetic waves in the electromagnetic ... Show the heat released by astronomical objects 3. Detect collection of gas, dust, and plasma. Which of these best matches the waves with their applications? ... C) Gamma rays—1 and infrared waves—2
Answer:
6. 2 Fe(s) + 3 Cu2+(aq) → 2 Fe3+(aq) + 3 Cu(s).
Explanation:
The reaction of solid iron with aqueous copper sulfate is an example of a single displacement type of reaction.
Half equations
2 Fe(s) → 2Fe2+(aq)
3CuSO4(aq) → 3Cu(s) + 3SO4^2-(aq)
Net ionic equation:
2Fe(s) + 3Cu2+(aq) → Fe2+(s) + 3Cu(aq)
2Fe(s) + 3CuSO4(aq) → Fe2(SO4)3(s) + 3Cu2+(aq)