Elements
Atoms
Periodic Table
Vocab.
Random Questions
100
a substance that cannot be broken down into simpler substances by chemical means
What is ELEMENT
100
a negatively charged particle
What is electron
100
a row of the periodic table
What is PERIOD
100
a negatively charged particle
What is electron
100
name an element that is an alkaline earth metal
What is what is Mg
200
elements that do not exhibit the properties of conductivity, malleability, and ductility
What is NON METAL
200
a positively charged particle
What is proton
200
determined by adding the mass of the protons and neutrons of the atom
What is ATOMIC MASS
200
a positively charged particle
What is proton
200
what is the symbol for aluminium
What is Al
300
a material that exhibit the properties of conductivity, malleability, and ductility
What is METAL
300
a negatively charged atom of molecule
What is anion
300
the number of protons contained in an element
What is ATOMIC NUMBER
300
a negatively charged atom of molecule
What is anion
300
a noble gas with the symbols Ar
What is Argon
400
a characteristic property of a metal that describes the case of flattening it with hammer
What is MALLEABLE
400
the dense core of an atom, it contains the protons and neutrons
What is NUCLEUS
400
B
What is BORON
400
a row of the periodic table
What is PERIOD
500
he starting materials in a chemical reaction that are transformed into products during chemical reactions
What is reactant
500
a positively charged atom or molecule
What is CATION
500
Mg
What is MAGNESIUM
500
atoms of the same element with identical atomic numbers but different number of electrons in the nucleus
What is ISOTOPE
500
what determines an element?
What is the Number of proton
M
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