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Vocabulary- 04.23.21

Education is not only the right, but the duty of every Muslim, male or female. 
Across
a vertical column (up and down) on the periodic table
the number of protons contained in each nucleus of its atoms of the element
the single capital letter or capital letter followed by a lower case letter or letters that represents the name of the element
the smallest unit of a compound that has all of the properties of the compound.
an element or substance that conducts heat and electricity
a scientific law that states that during a chemical reaction, matter c_____ be c_____ or d______ but can be changed into a different form.
the number of protons and neutrons in the nucleus of one atom of the element
a bond formed by the transfer of electrons (when valence electrons of one atom are transferred to the outer energy level of another atom)
elements that are made by scientists in a laboratory and do not exist in nature
an element that does not conduct electricity or heat and is usually a gas at room temperature
Down
a horizontal row (left to right) in the periodic table
electrons that are located in the outermost energy level of an atom
describes how likely an element is to form bonds with other elements
The Atomic Theory States: Atoms of different elements combine in simple whole-number ratios to form c______ c______.
an element that has some properties of a metal and some properties of a nonmetal
the region surrounding the nucleus of an atom where the electrons are located
a substance that cannot be broken down into a simpler substance by ordinary chemical means
elements and/or compounds that when put together are unable to react chemically
a bond formed when two atoms share valence electrons
an atom that has gained or lost one or more electrons
anything that has mass and volume
the smallest unit of an element that has all of the properties of the element