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Science test
| Question | Answer |
|---|---|
| what is group one | The alkali metals |
| what is group2 | the alkaline metals |
| what is group 3-12 | the transition metals |
| what group is on the left of the staircase | the other metals |
| what group is on the right of the staircase | the metalloids |
| what group if between the metalloids | the other non-metals |
| what is group 17 | halogens |
| what is group 18 | noble gases |
| what happens to the atomic radius as u go down a group and why | it increases because when u go down a group each time u go down a lvl the next element will gain a shell so in other words it increases because it gains a shell |
| what happens to the atomic radius as u go down a period from left to right | it decreases because the number of protons increases so theres a higher effective nuclear charge in other words the size decreases because theres more protons pulling the eleectrons closer to the nucleus shrinking the size of the atom |
| what is the effective nuclear charge | thats the charge that pulls the elctrons closer in to the nucleus shrinking the atom |
| what is electronegativity | Electronegativity is a measure of an atom's ability to attract shared electrons towards itself within a chemical bond |
| when does electronegativity rise on the periodic | moving from the bottom left to the top right the most it can be is fluorine |
| what is first ionization energy | the minimum energy needed to remove the outermost electron from gaseous atoms to form a positive ion |
| what happens to the first ionization energy as u go down a group | the energy decreases |
| what happened to the first ionization as u go from left to right | it increases |
| what are the 7 metalloids | Boron, silicon, Ge,As, Sb, Te, At |
| how do we know what elements have the same | they are in the same group |
| elements in the same group have | similar chemical properties |
| what do elements in the same period have | the same number if shells |
| when an atom loses a electron it becomes what | a positive ion |
| when an atom gains an electron what does it become | a negative ion |
| how do you know which element in the ground state needs the least amount of energ y to remove its valence electron | the lower it is in the group the less it needs |
| if a question asks which element in a group is diatomic pick what | the highest on in the group |
| what are some physical properties of an element | shiny malleable ductile good conducters of heat and electricity solid at room temp |
| metals lose what and become what | metals lose an electron and become a positve ion |
| non metals gain what and become what | non metals gain electrons and become a negative ion |
| what are some properties for a non metal | dull brittle |
| if i get a question that asks what compound or element is coreless in water the answer would be | anything thats not in the transitions metal area |
| what are the most active non meltals | halogens |
| the higher an element is the more | active it is |
| as go down a group the elements generally become ____ Metalic | More |
Created by:
Fernando.Quezada