Inorganic Chemistry سوالات
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Actual number of atoms or molecules in a mole
How does the density change as we go down group 1?
How do the melting and boiling point change as we go down group 1?
What's the name of the force between two (or more) ions which have the opposite charges?
How do the melting and boiling points change as we go down group 7?
What colour flame does lithium burn with?
What colour flame does sodium burn with?
How does the reactivity change as we go down group 1?
How does the physical state at room temperature change as we go down group 7?
What type of evidence had led scientists to change their model of the atom?
What colour flame does potassium burn with?
True or false- Ionic compounds generally have low melting points
true or false elements of the halogen family lose one electron to become halide ions
Coordination number of the ions in a crystal of NaCl
true or false- pure metals are usually harder and mure durable than alloys
True or false The group number of an element in the periodic table is related to the number of valence electrons it has
Symbol, electron configuration, noble gas of nitride
electron congifuration for mg- circle the electron lost
true or false- metals are made up of cations, not neutral atoms
a mixture of two or more elements at least one is a metal