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Science 8th Grade
Test review for Activities 7A-16A
What is the smallest possible portion of the element of sodium that still retains the properties of sodium? | Atom |
How are elements listed in order in the rows with in the periodic table? | Based on their atomic number |
Most elements are what phase at room temperature? | solids |
On the periodic table of elements, where are the metals primarily found? | left side, columns 1-13 |
On the periodic table of elements, where are the nonmetals primarily found? | on the right side, parts of columns 16-17 and all of column 18 |
Where are the least reactive elements found on the Periodic Table of Elements? | nobel gases, far right in column 18 |
Where would highly reactive metals be located in the Periodic Table of Elements? | Alkali Metal, far left in column 1 |
Describe the make up of an element. | an element contains atoms of only one kind (all of the same number of protons) |
If an element is located in column 1 on the Periodic Table of Elements, how many electrons will be in the outer shell of its atom? | (alkali metals) one electron in the outer shell |
What is the relationship between atoms and molecules? | molecules are made up two or more of atoms of the same or different kinds. |
describe the structure of an atom | an atom is composed of protons and neutrons in a nucleus and electrons orbiting around the nucleus in the electron cloud |
describe the location of electrons in an atom | the electron cloud surrounds the nucleus. |
What is true about the motion of particles in all three states of matter | particles in all three states of matter are in constant motion |