How Are Phosphorus Electrons Arranged? Phosphorus has electron configuration, 1s22s22p63s23p3. The highest-numbered shell is the third shell (3s23p3): 2 electrons in the 3s subshell How are electrons arranged in an atom by? Viewed simply, electrons are arranged in shells around an atom’s nucleus. Electrons closest to the nucleus will have the lowest energy. Electrons further
Which Best Describes How The Nucleus Was Discovered? In 1911, Rutherford, Marsden and Geiger discovered the dense atomic nucleus What is a nucleus and how was it discovered? The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on
Who Debunked The Idea Of Democritus About Atom? Democritus was an important philosopher, but he was less influential than another Greek philosopher named Aristotle, who lived about 100 years after Democritus. Aristotle rejected Democritus’ idea of the atom. Who is the father of atomic theory? The idea that everything is made of atoms was pioneered
Where Was Democritus Educated? When his father died, Democritus took his inheritance and spent it traveling to distant lands, slaking his nearly endless thirst for knowledge. He traveled over much of Asia, studied geometry in Egypt, went to the Red Sea and Persia regions to learn from the Chaldeans, and may have visited Ethiopia. Who
Why Does An Atom Has No Electric Charge? An atom usually contains an equal number of positively charged protons and negatively charged electrons. This makes the atom itself electrically neutral. What is an atom with no charge? neutron: A subatomic particle forming part of the nucleus of an atom. It has no charge. It is
Who Contributed To The Modern Atomic Theory? English chemist and physicist John Dalton extended Proust’s work and converted the atomic philosophy of the Greeks into a scientific theory between 1803 and 1808. Who is given credit for the current atomic model *? The Rutherford model is a model of the atom named after Ernest Rutherford.
Why We Cannot See Atoms With Naked Eyes? An atom cannot be visible to the naked eyes because, Atoms are miniscule in nature, measured in nanometres. Except for atoms of noble gasses, they do not exist independently. Why is it not possible to see atoms with naked eyes? Answer: It is not possible to see
Why Was The Bohr Model Rejected? Bohr’s model failed because it treated electrons according to the laws of classical physics. Unfortunately, those laws only apply to fairly large objects. Back when Bohr was developing his model, scientists were only beginning to realize that the laws of classical physics didn’t apply to matter as tiny as
Does A Neutral Atom Have A Charge? When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral. Does a
Why Definition Of Atom Given By Delton Is No Longer Valid? All the matter is made up of very small particle called atoms. Atoms can neither be created or nor destroyed. Why was Dalton’s model of the atom rejected? Answer: According to Dalton atoms of different elements combine in simple whole number ratio to form