1) Anything that has mass and volume  a) matter  b) Atom  2) the buliding and structure unit of any matter a) matter b) atom 3) The first scientific theory about the atom a) dalton b) Rutherford 4) the first model of the atom based on experimental basis...... a) dalton b) Ruherford 5) a new zealand phyicist who won the nobel prize in chemistry in 1908 a) Dalton b) Rutherford 6) Positively charged particles found inside the nucleus of the atom a) proton b) neutron 7) a subatomic particle whose charge can be neglected ,but its mass cannot be neglected a) proton b) neutrons 8) negatively charged particles in the atom with very tiny mass ,revolving around the nucleus. a) proton  b) electrons 9) a subatomic particle whose mass equal1/1836 u  a) protons b) electrons 10) chemical compounds that are used to improve agricultural production  a) fertilizers  b) nutrients  11) regions where electrons revolve around the nucleus according to their energy a) energy level b) atomic number 12) a number written at the lower left side of an element"s symbol representing the nuber of the positive protons found inside the nucleus of the element a) atomic number b) mass number 13) The sum of the number of protons and neutrons in that compose the nucleus atom a) atomic number b) mass number 14) Different forms of the same element's atoms that have the same atomic number but differ in mass numbers a) isotopes b) atomic number 15) a table in which elements are arranged in ascending order based on their atomic masses a) menedelev b) mosely 16) The first true periodic table for classifying elements a) Mendelev b) Mosely 17) a table in which elements are arranged in ascending order based on their atomic numbers a) Mendeleev'periodic table b) Moseley's periodic table 18) a table in which elements are arranged in ascending order based on their atomic numbers and method of the their atomic nubers and the method of filling of vthe energy sublevels with electrons a) Mosely b) modern periodic table 19) The horizontal rows in the modern periodic table a) periods b) groups 20) The vertical columns in the modern periodic table a) periods b) groups 21) The metal which are located at the far-left side of the modern periodic table a) Alkaline Earth Metals b) Alkali metals 22) Elements whose electron configurations end with 5,6 or 7 electrons a) metals b) non metals 23) elements in the P-block that cannot be identified solely by the number of electrons in their outermost energy levels a) non metals b) metalloids  24) The electrons found in the outermost energy level of an element a) valence electron b) period number 25) The number of unpaired electrons in the lewis structure of an element a) valence electron b) ionic electron

Science. Prep 1

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