Particle diagram - Study guides, Class notes & Summaries

If an unshielded sample of radioactive material emits alpha particles, what effect will it have on a person sitting in the next room? (Assume the wall between rooms is composed of concrete.) - None, because the wall will block the radiation. In which isotope is the strong nuclear force not strong enough to balance electrostatic forces between protons? - uranium-238 A radioactive nuclide that is used for radiation therapy for cancer has 33 neutrons and a mass number of 60. Which is the corr...

AQA AS FURTHER MATHEMATICS 7366/2M Paper 2 Mechanics Version: 1.0 Final G/LM/Jun23/E3 7366/2M (JUN2373662M01) AS FURTHER MATHEMATICS Paper 2 Mechanics Friday 19 May 2023 Afternoon Time allowed: 1 hour 30 minutes Materials l You must have the AQA Formulae and statistical tables booklet for A‑level Mathematics and A‑level Further Mathematics. l You should have a graphical or scientific calculator that meets the requirements of the specification. l You must ensure you have the ...

BrainPop – Atoms Questions and Answers Already Passed What is the significance of the periodic table of elements? It predicts and lists all the chemical elements in the universe What do electrons in the same shell have in common? They have the same amount of energy Which of the following is an example of a subatomic particle? Electron What might happen if the strong force didn't exist? Atomic nuclei would fly apart What two types of particles exist within an atomic nucleus? P...

CHEMISTRY SUMMER EXAM 2024 QUESTIONS AND CORRECT ANSWERS WITH COMPLETE SOLUTIONS VERIFIED AND GRADED A++ What is an element? A substance made up of one type of particle only that cannot be split into other substances by chemical means. What is an atom? The smallest particle of an element What is a solid, liquid, gas particle? What is a compound? 2 or more elements chemically combined What is a mixture? A combination of two or more substances that are not chemically combined What is ...

Light-Year is the distance light travels in one year; 1 light-year = 10,000,000,000,000 km or 10 trillion km Apparent Magnitude is a measure of how bright an object appears from Earth Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:00 Full screen Luminosity also known as the absolute magnitude; it is the true brightness of an object Nuclear Fusion is a process that occurs when the nuclei of several atoms com...

A black car left in the sunlight becomes hotter than a white car left in the sunlight under the same conditions because - ️️the white car reflects more sunlight than the black car. A planet is detected via the Doppler technique. The velocity change of the star is a measure of - ️️the planet's mass and orbital distance. A planet will have bands in its atmosphere like Jupiter and Saturn if - ️️the planet has a high temperature. A prism is able to spread white light out into a spect...

1 One end of a light inextensible string of length 0.8m is attached to a particle P of mass mkg. The other end of the string is attached to a fixed point O. Initially P hangs in equilibrium vertically below O. It is then projected horizontally with a speed of 5.3ms -1 so that it moves in a vertical circular path with centre O (see diagram). 5.3ms −1 At a certain instant, P first reaches the point where the string makes an angle of 1 r radians with the downward vertical through O. (...

Ion - Answer another name for a charged particle (when an atom loses or gains electrons) Ionic Bond - Answer The strong electrostatic attraction between oppositely charged ions (positive ion and negative ion) Covalent Bond - Answer The strong electrostatic attraction between positive nucleii and the shared pair of electrons Metallic Bond - Answer The strong electrostatic attraction between positive metal ions and the sea of free electrons Molecule - Answer atoms joined by c...

1. Which particle diagram shown above best represents the strongest intermolecular force between two ethanol, C2H6O, molecules? A. Diagram 1, because it shows hydrogen bonds forming between hydrogen atoms from different ethanol molecules. B. Diagram 1, because it shows strong, directional dipole-dipole forces between two polar ethanol molecules. C. Diagram 2, because it shows the formation of a hydrogen bond between an H atom bonded to an O atom with an O atom from another molecule. D. Di...

Question 1 Correct 5.00 points out of 5.00 Talc is a mineral with low conductivity for heat and electricity which is not attacked by acid. It is used in talcum powder and face powder. Suppose a sample of talc weighs 13.65 g with a density of 1.75 g/cm3 in mineral oil. If this same sample of talc in air weighs 35.97 g, assuming no volume change, what is the density of the talc sample in air? Select one: A. 2.44 g/cm3 B. 2.82 g/cm3 C. 1.61 g/cm3 D. 4.61 g/cm3 E. 2.63 g/cm3 Question 2...