Chem chapter 5 practice

Smaller, less electrons

A Ca(^2+) ion differs from a Ca atom in that the Ca(^2+) ion is _____ because it has ______ ______?

D: transition metals and chlorides form colored solutions

A chloride dissolves in water to form a colored solution. Which of the following could the chloride be? {a)HCI, b)KCI, c)CaCl2, d)NiCl2}

Ne

An atom in the ground state has a stable balance electron configuration. This atom could be? { a)Al, b)Na, c)Cl, d)Ne }

A halogen

An atom of an element has 17 protons, 18 neutrons, and 17 electrons. This element is ? { a)a noble gas, b)an alkaline earth metal, c)a halogen, d)an alkali metal }

Decreases, increases

As you go across (from left to right) the periodic table, the atomic radius of each successive atom ______ because the nuclear charge ______?

Nonmetals

Atoms that have high ionization energies and poor electrical conductivity are usually _____?

Fewer valance electrons

Compared to the atoms of nonmetals in period 3, the atoms of metals in period 3 have ____?

Phosphorus

Element X is a solid that is brittle, lacks luster, does not conduct electricity, and has five valance electrons. Which of the following elements could element X be? { a)sulfur, b)phosphorus, c)nitrogen, d)bismuth }

Alkali metals

Elements in the _______ family are so chemically active that they occur naturally only in compounds.

Electronegativity, ionization energy

In period 4, as the elements are considered from left to right there is an increase in ________?

Lower left corner

In which section of the periodic table are most active metals located?

Cl, S, S^2-

Rank (S, S^-2, Cl) in order of increasing radius, given their position on the periodic table

Atomic numbers

The observed regularities or patterns in the properties of elements are periodic functions of their? { a)non-valance electrons, b)oxidation states, c)mass numbers, d)atomic numbers }

They tend to lose electrons easily when bonding

What is a property of most metals?

Calcium

Which element has properties most like those of magnesium? { a)sodium, b)calcium, c)cesium, d)potassium }

Bi

Which element in group 15 has the most metallic character: N, P, As, or Bi?

Ag

Which element in period 5 of the periodic table is a transition element? { a)Sr, b)Ag, c)Sb, d)Xe }

17

Which group is known as the halogens?

13

Which group on elements in the period table contains a metalloid? { a)1, b)13, c)18, d)7 }

C

Which list consists of elements that have the most similar chemical properties? { a)Mg, Al, Si, b)K, Al, Ni, c)Mg, Ca, Ba, d)K, Ca, Ga}

Na, Rb

Which of the following elements have the most similar chemical properties: Na, Ar, As, and Rb?

Si

Which of the following period 3 elements has the least metallic character? { a)Si, b)Al, c)Na, d)Mg }

Mercury, bromine

___ & ___ are liquid at room temperature.