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The atomic number of oxygen is
Identify the elements in this compound.
Carbon, Helium, Oxygen
Chromium, Hydrogen, Oxygen
Calcium, Hydrogen, Oxygen
Carbon, Hydrogen, Oxygen
The number of electrons in a Lithium atom is
The opposite phase of melting is
Positively charged particles
Negatively charged particles
If an atom has 3 electrons, how many protons does it have?
A group of elements that are shiny, conduct heat and electricity well is called
What is made up two or more elements that are chemically combined?
Which of these is a property of metals?
Can't conduct electricity
What does the nucleus of an atom contain?
Electrons and neutrons
Protons and neutrons
Electrons and protons
Which is an example of an heterogenous mixture?
Metals are located on what size of the periodic table?