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Which of the following determines the reactivity of an atom?
Valence Electrons
A physical change.
Equal
Sodium
Protons
Protons and Neutrons
Group
Nonmetal
The numbers (1-18) at the very top of the Periodic table of elements are called
Valence Electrons
A physical change.
Equal
Sodium
Protons
Protons and Neutrons
Group
Nonmetal
According to the law of conservation of mass, the number of atoms of the reactants and the products should be___
Valence Electrons
A physical change.
Equal
Sodium
Protons
Protons and Neutrons
Group
Nonmetal
Sodium (Na) belong to Group 1, while Neon (ne), belong to group 18. Which element is more reactive?
Valence Electrons
A physical change.
Equal
Sodium
Protons
Protons and Neutrons
Group
Nonmetal
What subatomic particles are found inside the nucleus?
Valence Electrons
A physical change.
Equal
Sodium
Protons
Protons and Neutrons
Group
Nonmetal
The element's identity can be determined by its ___
Valence Electrons
A physical change.
Equal
Sodium
Protons
Protons and Neutrons
Group
Nonmetal
Change of state, such as water evaporating, is an example of____.
Valence Electrons
A physical change.
Equal
Sodium
Protons
Protons and Neutrons
Group
Nonmetal
An element is dull, brittle, and not reactive. This element is a __
Valence Electrons
A physical change.
Equal
Sodium
Protons
Protons and Neutrons
Group
Nonmetal
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