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1. According to the periodic table, which statement correctly describes the change from a neutral atom of an element to its ion?
Is a transition metal
beryllium
Group 2
chlorine (Cl)
They have the maximum possible number of electrons in their outermost shell
A phosphorus atom forms a P3- ion by gaining three electrons
17
8 protons
Which of the following is NOT a property of sodium?
Is a transition metal
beryllium
Group 2
chlorine (Cl)
They have the maximum possible number of electrons in their outermost shell
A phosphorus atom forms a P3- ion by gaining three electrons
17
8 protons
An ion of Chlorine has 18 electrons, 17 protons and 19 neutrons. What is its atomic number?
Is a transition metal
beryllium
Group 2
chlorine (Cl)
They have the maximum possible number of electrons in their outermost shell
A phosphorus atom forms a P3- ion by gaining three electrons
17
8 protons
The elements neon and argon are NOT reactive. Which hypothesis BEST explains this?
Is a transition metal
beryllium
Group 2
chlorine (Cl)
They have the maximum possible number of electrons in their outermost shell
A phosphorus atom forms a P3- ion by gaining three electrons
17
8 protons
All atoms of Oxygen have....
Is a transition metal
beryllium
Group 2
chlorine (Cl)
They have the maximum possible number of electrons in their outermost shell
A phosphorus atom forms a P3- ion by gaining three electrons
17
8 protons
Using the Periodic Table, Iodine (I) would have chemical properties most like
Is a transition metal
beryllium
Group 2
chlorine (Cl)
They have the maximum possible number of electrons in their outermost shell
A phosphorus atom forms a P3- ion by gaining three electrons
17
8 protons
Which group forms 2+ ions?
Is a transition metal
beryllium
Group 2
chlorine (Cl)
They have the maximum possible number of electrons in their outermost shell
A phosphorus atom forms a P3- ion by gaining three electrons
17
8 protons
According to the periodic table, the neutral atom of what element has 4 protons, 5 neutrons, and 4 electrons?
Is a transition metal
beryllium
Group 2
chlorine (Cl)
They have the maximum possible number of electrons in their outermost shell
A phosphorus atom forms a P3- ion by gaining three electrons
17
8 protons
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