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Which of the following is an empirical formula?
atomic number
an element
18
b) N2O
larger radius
d) 2-7-7
the lower the kinetic energy of the sample
b) smaller radius
Compared to a sodium atom, a sodium ion has
atomic number
an element
18
b) N2O
larger radius
d) 2-7-7
the lower the kinetic energy of the sample
b) smaller radius
What is the electron configuration of a sulfur atom in excited state?
atomic number
an element
18
b) N2O
larger radius
d) 2-7-7
the lower the kinetic energy of the sample
b) smaller radius
What is the maximum number of electrons that can be in the 3rd shell?
atomic number
an element
18
b) N2O
larger radius
d) 2-7-7
the lower the kinetic energy of the sample
b) smaller radius
The lower the temperature of a same of water
atomic number
an element
18
b) N2O
larger radius
d) 2-7-7
the lower the kinetic energy of the sample
b) smaller radius
The elements on the Periodic Table are arranged in order of increasing
atomic number
an element
18
b) N2O
larger radius
d) 2-7-7
the lower the kinetic energy of the sample
b) smaller radius
Which can not broken down ?
atomic number
an element
18
b) N2O
larger radius
d) 2-7-7
the lower the kinetic energy of the sample
b) smaller radius
Compared to a chlorine atom, a chlorine ion -1 has
atomic number
an element
18
b) N2O
larger radius
d) 2-7-7
the lower the kinetic energy of the sample
b) smaller radius
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