Metals conduct electricity because....

electrons move freely between metal atoms.

If an electron configuration for an element ended in s1, which would always be true?

The element would be highly reactive with water.

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periodic trends

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#chemistry # periodic table

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Questions 15

Answers

1
What charge would an Iodine (I) ion have?
Iodine does not form ions.
+2
-1
+1
2
What type of ions do metals form?
Cations (positive)
Both
Anions (negative)
They do not form ions.
3
Which does NOT describe metals
Brittle
Ductile
Good conductors of electricity
Malleable
4
Which would be the most reactive?
Calcium (Ca)
Nickel (Ni)
Krypton (Kr)
Potassium (K)
5
Metals conduct electricity because....
electrons move freely between metal atoms.
protons move freely between metal atoms.
the electrons are not easily excited
metals can form alloys
6
Which is a metalloid?
Strontium
Sulfur
Silicon
Sodium
7
Which of the following is a halogen?
[Kr]5s24d105p6
[Ne]3s2
[He]2s22p4
[Ar]4s23d104p5
8
Which choices describe alloys?
Include bronze, brass, and steel
All of these
Are a metal mixed with something else
Are stronger and harder than the base metal
9
Which group does not form ions?
Nobel Gases
Alkali metals
Halogens
Alkaline Earth Metals
10
If an electron configuration for an element ended in s¹, which would always be true?
The element would form negative ions.
The element would be highly reactive with water.
The element would be radioactive.
The element would be a transition metal.
11
Which two elements are liquids at room temperature?
Br and Hg
Pb and Cl
Cu and Sr
H and He
12
Which of the following would have 7 valence electrons?
Gold (Au)
Magnesium (Mg)
Argon (Ar)
Chlorine (Cl)
13
The periodic table is arranged by ....
Increasing mass number
Increasing reactivity
Increasing atomic number
Increasing atomic mass
14
Which of the following is a alkaline earth metal?
Lithium (Li)
Barium (Ba)
Uranium (U)
Nickel (Ni)
15
Which of the following describes potassium (K)?
It forms +1 cations.
It has 2 valence electrons.
It is not very reactive.
It is an inner transition metal.

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