General Chemistry Questions & Answers

General Chemistry Questions & Answers Accuracy - CORRECT ANSWER - How close the measured value is to the true value -(all the bullet grouped into the target is both precise and accurate!) Acid - CORRECT ANSWER - A hydrogen starting compound. -HCl, Hydrogen chloride, Water is slightly acidic Alkali metals - CORRECT ANSWER - the first group in the periodic table, though it excludes hydrogen. malleable, like all other metals, good conducter, lusterous, solid at room temperature, tend to lose electrons to form cations. they give it away easily -wants to react with the halogens very much, since halogens only need 1 more electron to become stable. alkaline earth metals - CORRECT ANSWER - ... Alpha Decay - CORRECT ANSWER - The Loss of 1 Alpha particle. -An Alpha particle is a helium nucleus, 4/2He, composed of 2 protons and 2 neutrons, and carries a charge of 2+ amu - CORRECT ANSWER - ... anion - CORRECT ANSWER - fewer protons than electrons, negative charge atomic mass - CORRECT ANSWER - total mass of the protons and neutrons in an atom, measured in atomic mass units Atomic number - CORRECT ANSWER - Amount of protons in the nucleus. -(appears on the bottom left of the element name) The amount of electrons prevalent is always the same as the amount of protons unless otherwise noted. Beta Decay - CORRECT ANSWER - When an isotope emits an electron -carries a -1 charge, and is represented by "0^/-1 e" Bonding (octet rule) - CORRECT ANSWER - Atoms coming together in order to acheive an electron configuration that is the same as the electron configuration of a noble gas