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science
| Question | Answer |
|---|---|
| the periodic table is defined as | an organzation of the elements in order of increasing atomic number and grouped acorrding to simalar chemical properties and simalar eloctron arrangments |
| a substance that cannot be broken down into simpler stuff by any chemical meanss | elements |
| Dmitri Mendeleev was a blank scienst who set up the priodict table in the blank century | russian, nineteeth |
| using Mendeleeve's system elements with similar blank blank blank properties fell into families or groups | physical and chemical |
| families or groups are designated by what? | vertical columes |
| elements on the peroidict table are usually identified with three things what are they | symbol,atomic number, atomic weight |
| protons are found in the blank of an atom | nucleus |
| Metals are found where on the priodic table? | left- |
| the periodic table is defined as | an organzation of the elements in order of increasing atomic number and grouped acorrding to simalar chemical properties and simalar eloctron arrangments |
| a substance that cannot be broken down into simpler stuff by any chemical meanss | elements |
| Dmitri Mendeleev was a blank scienst who set up the priodict table in the blank century | russian, nineteeth |
| using Mendeleeve's system elements with similar blank blank blank properties fell into families or groups | physical and chemical |
| families or groups are designated by what? | vertical columes |
| elements on the peroidict table are usually identified with three things what are they | symbol,atomic number, atomic weight |
| protons are found in the blank of an atom | nucleus |
| Metals are found where on the priodic table? | left-hand side |
| Non metals are found where on the periodic table? | right-hand side |
| Elements that are alkali metals. | Sodium, potassium, lithium, cesium, francium |
| helium (he)is a | gas |
| there are two rows of elements on the bottom of the table. These elements are the rare earth metals. What is the name given to each of these rows of elements | Lanthanides, atcinides |
| name two elements in group VIIA | Flourine, Chlorine, Bromine, Idione, Astatine |