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What is the total number of electrons in an atom with an atomic number of 13 and a mass number of 25
shiny luster, good conductors, malleable
an iron wire left outside turns a rusty color
Element X
Sodium
5 atoms
13
Na2 and H2SO4
in a group or family of the periodic table
Which of the following best describes a change in iron caused by a chemical reaction?
shiny luster, good conductors, malleable
an iron wire left outside turns a rusty color
Element X
Sodium
5 atoms
13
Na2 and H2SO4
in a group or family of the periodic table
Which of the following lists the properties of metals
shiny luster, good conductors, malleable
an iron wire left outside turns a rusty color
Element X
Sodium
5 atoms
13
Na2 and H2SO4
in a group or family of the periodic table
Element T has 7 protons. Element Q has 15 protons. Element X has 12 protons. Element Z has 17 protons. According to the periodic table, which of the elements is metal?
shiny luster, good conductors, malleable
an iron wire left outside turns a rusty color
Element X
Sodium
5 atoms
13
Na2 and H2SO4
in a group or family of the periodic table
Na2+H2SO4-> Na2SO4+ H2 Which of the following lists all of the reactants of the equation shown above?
shiny luster, good conductors, malleable
an iron wire left outside turns a rusty color
Element X
Sodium
5 atoms
13
Na2 and H2SO4
in a group or family of the periodic table
According to the periodic table, all of the following are nonmetals except---
shiny luster, good conductors, malleable
an iron wire left outside turns a rusty color
Element X
Sodium
5 atoms
13
Na2 and H2SO4
in a group or family of the periodic table
Scientist believe that interactions between atoms depend mostly on the arrangement of the valance electrons. This theory is MOST supported by the observation of similar reactions
shiny luster, good conductors, malleable
an iron wire left outside turns a rusty color
Element X
Sodium
5 atoms
13
Na2 and H2SO4
in a group or family of the periodic table
How many total atoms are in a molecule of iron oxide, Fe2O3?
shiny luster, good conductors, malleable
an iron wire left outside turns a rusty color
Element X
Sodium
5 atoms
13
Na2 and H2SO4
in a group or family of the periodic table
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