1 Matter and radiation - AQA A-level Physics with 100% perfect answers 2024

The Four Fundamental Forces of Nature correct answersThe strong nuclear force, The electromagnetic force, The weak nuclear force, Gravity. 3.2.1.1 Inside the atom correct answers-Describe what is inside an atom. -Explain the term isotope. -Represent different atoms. Study tip 1 correct answersDon't mix up 'n' words - nucleus, neutron, nucleon, nuclide! Every atom contains correct answers-A positively charged nucleus composed of protons and neutrons. -Electrons that surround the nucleus. The word nucleon is used as correct answersA word for a proton or neutron in the nucleus. Inside the atom table correct answersPage 4. -Protons = + charge and found in the nucleus -Neutrons = NO charge and found in the nucleus -Electrons = - charge and found in the electron cloud Inside the atom diagram correct answers SI Units for atoms correct answers-Charge: Coulombs -Mass: Kilograms Proton number is also called correct answersThe atomic number (symbol z) for example: z = 6 for Carbon because every Carbon atom has six protons in its nucleus z = 92 for Uranium because every Uranium atom has 92 protons in its nucleus Isotopes correct answersAtoms with the same number of protons but different numbers of neutrons. for example: The most abundant isotope of natural uranium contains 146 neutrons and the next most abundant contains 143 neutrons. The total number of protons and neutrons in an atom correct answersis called the nucleon number (symbol A) or sometimes the mass number of the atom. This is