Subatomic particles where is it located

Aug 23, There are basically three subatomic particles inside an atom Subatomic particles are those which make up an atom. They are: color blue "Neutron" "It is the neutral part of an atom" "It means that it has no charge. It is neither negative nor positive" "It is situated in the nucleus or the centre part of an atom" color green "Proton" "It is the positive part of an atom" "It has a positive charge" "It is also located in the nucleus of an atom attached to a neutron or another proton" color red "Electron" "It is the negative part of an atom" "It has a negative charge " "It revolves around the nucleus of an atom".

Related questions How big is an electron compared with a proton? Possible Answers: Rutherford's iron foil experiment. Correct answer: Rutherford's gold foil experiment. Explanation : The experiment that confirms the atom structure is Rutherford's gold foil experiment. Possible Answers: In the electron cloud. Correct answer: In the electron cloud. Explanation : Electrons are located in an electron cloud, which surrounds a densely packed center known as the nucleus.

Possible Answers: Protons are located in the nucleus. The protons in the nucleus attract the electrons in the electron cloud. Correct answer: All of these statements are true. Explanation : All of the given statements are true. Possible Answers:. Correct answer:. Explanation : Neutrons have no charge. Which subatomic particles are found in the nucleus of an atom? Possible Answers: Neutrons and electrons. Correct answer: Protons and neutrons.

Explanation : Protons and neutrons are found in the nucleus of atoms, while electrons are found in orbitals around the nucleus. Explanation : First, start off by finding S sulfur on the periodic table. Copyright Notice. View Tutors. Nick Certified Tutor. Kalamazoo College, Bachelors, Chemistry.

Daniel Certified Tutor. Pamela Certified Tutor. Through the use of radiometric dating, scientists can study the age of fossils or other remains of extinct organisms. Privacy Policy. Skip to main content. Atoms, Molecules, and Ions. Search for:. The Structure of the Atom Overview of Atomic Structure Atoms are made up of particles called protons, neutrons, and electrons, which are responsible for the mass and charge of atoms.

Learning Objectives Discuss the electronic and structural properties of an atom. Key Takeaways Key Points An atom is composed of two regions: the nucleus, which is in the center of the atom and contains protons and neutrons, and the outer region of the atom, which holds its electrons in orbit around the nucleus. Neutrons are uncharged particles found within the nucleus. Key Terms atom : The smallest possible amount of matter which still retains its identity as a chemical element, consisting of a nucleus surrounded by electrons.

It weighs 1 amu. It has no charge. It is equal in mass to a proton or it weighs 1 amu. Atomic Number and Mass Number The atomic number is the number of protons in an element, while the mass number is the number of protons plus the number of neutrons.

Learning Objectives Determine the relationship between the mass number of an atom, its atomic number, its atomic mass, and its number of subatomic particles. Key Takeaways Key Points Neutral atoms of each element contain an equal number of protons and electrons. The number of neutrons is variable, resulting in isotopes, which are different forms of the same atom that vary only in the number of neutrons they possess.

Key Terms mass number : The sum of the number of protons and the number of neutrons in an atom. Isotopes Isotopes are various forms of an element that have the same number of protons, but a different number of neutrons.

Learning Objectives Discuss the properties of isotopes and their use in radiometric dating. Key Takeaways Key Points Isotopes are atoms of the same element that contain an identical number of protons, but a different number of neutrons.

Despite having different numbers of neutrons, isotopes of the same element have very similar physical properties. Some isotopes are unstable and will undergo radioactive decay to become other elements. The predictable half-life of different decaying isotopes allows scientists to date material based on its isotopic composition, such as with Carbon dating.

Key Terms isotope : Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. Electron clouds are more accurate representations of where electrons are found. Darker areas represent where the electrons are more likely to be found, and lighter areas represent where they are less likely to be found. Protons were discovered by Ernest Rutherford in the year , when he performed his gold foil experiment.

He projected alpha particles helium nuclei at gold foil, and the positive alpha particles were deflected. He concluded that protons exist in a nucleus and have a positive nuclear charge.

The atomic number or proton number is the number of protons present in an atom. The atomic number determines an element e. Electrons were discovered by Sir John Joseph Thomson in After many experiments involving cathode rays, J.

Thomson demonstrated the ratio of mass to electric charge of cathode rays. He confirmed that cathode rays are fundamental particles that are negatively-charged; these cathode rays became known as electrons. Robert Millikan, through oil drop experiments, found the value of the electronic charge. Electrons are located in an electron cloud, which is the area surrounding the nucleus of the atom.

There is usually a higher probability of finding an electron closer to to the nucleus of an atom. Electrons can abbreviated as e -. Electrons have a negative charge that is equal in magnitude to the positive charge of the protons. However, their mass is considerably less than that of a proton or neutron and as such is usually considered insignificant. Unequal amounts of protons and electrons create ions: positive cations or negative anions.

Neutrons were discovered by James Chadwick in , when he demonstrated that penetrating radiation incorporated beams of neutral particles.

Neutrons are located in the nucleus with the protons. Along with protons, they make up almost all of the mass of the atom. The number of neutrons is called the neutron number and can be found by subtracting the proton number from the atomic mass number.

The neutrons in an element determine the isotope of an atom, and often its stability. The number of neutrons is not necessarily equal to the number of protons. Often the proton number is not indicated because the elemental symbol conveys the same information. The atomic mass number of Carbon is 12 amu, the proton number is 6, and it has no charge.