Unit 1 Part 1 Question Preview (ID: 49172)
Periodic Table.
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Which group forms 2+ ions?
a) Group 2
b) Group 1
c) Group 16
d) Group 17
All atoms of Oxygen have....
a) 8 neutrons
b) 8 protons
c) 8 electrons
d) a mass of 16
The elements neon and argon are NOT reactive. Which hypothesis BEST explains this?
a) They are not stable atoms.
b) They are not readily available on Earth
c) They tend to give up all of their valence electrons easily.
d) They have the maximum possible number of electrons in their outermost shell
According to the periodic table, the neutral atom of what element has 4 protons, 5 neutrons, and 4 electrons?
a) boron
b) beryllium
c) fluorine
d) aluminum
Which of the following pairs of atoms is unlikely to form a compound?
a) potassium (K) and iodine (I)
b) calcium (Ca) and chlorine (Cl)
c) magnesium (Mg) and sulfur (S)
d) neon (Ne) and argon (Ar)
Which of the following is NOT a property of sodium?
a) Symbol is Na
b) Is a transition metal
c) Atomic number is 11
d) Has one valence electron
Using the Periodic Table, Iodine (I) would have chemical properties most like
a) chlorine (Cl)
b) tellurium (Te
c) xenon (Xe)
d) manganese (Mn)
1. According to the periodic table, which statement correctly describes the change from a neutral atom of an element to its ion?
a) A sodium atom forms a Na1+ ion by losing two electrons.
b) A magnesium atom forms a Mg2+ ion by gaining two electrons.
c) A fluorine atom forms a F1- ion by losing one electron.
d) A phosphorus atom forms a P3- ion by gaining three electrons
An ion of Chlorine has 18 electrons, 17 protons and 19 neutrons. What is its atomic number?
a) 19
b) 18
c) 17
d) 36
Which of these elements is a nonmetal?
a) Bismuth
b) Tin
c) Sodium
d) Nitrogen
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