Identify the group $6 A$ element that best fits each of the following descriptions: (a) Is a metal (b) Is the most abundant element in the human body (c) Is the strongest oxidizing agent (d) Has the most negative electron affinity

True or False, The first element in an array is accessed by the subscript 1.

Prove that every $(n+1)$-element subset of $\{1,2,...,2n\}$ contains two distinct integers $p$ and $q$ such that $p$ divides $q$. Hint: If $X$ is an $(n+1)$-element subset of $\{1,2,...,2n\}$, write the numbers in $X$ in the form $2^mk$, where $k$ is odd.

After you fill in the element on the line, write the type of element ( prefix, root, combining form, suffix) you have used below the lines. Fill in the blanks.

Region between diaphysis and epiphysis ________ /physis

How many protons and electrons are contained in an atom of element 44?

Look at the following array definition:

int[] values = new int[10];

a. How many elements does the array have?

b. What is the subscript of the first element in the array?

c. What is the subscript of the last element in the array?

Choose the letter that best answers the question or complete s the statement. An alloy contains a. at least one metallic element. b. at least one nonmetallic element. c. only metallic elements. d. only nonmetallic elements.

List the number of valence electrons for each element and classify each element as an alkali metal, alkaline earth metal, halogen, or noble gas. a. sodium b. iodine c. calcium d. barium e. krypton

The heating element of an electric dryer is rated at 4.1 kW when connected to a 240-V line. (a) What is the current in the heating element? Is 12-gauge wire large enough to supply this current? (b) What is the resistance of the dryer’s heating element at its operating temperature? (c) At 11 cents per kWh, how much does it cost per hour to operate the dryer?

An element exists in the gaseous state at room temperature and normal atmospheric pressure and is known to be one of the following: hydrogen, helium, nitrogen, oxygen, fluorine, chlorine, or neon. Identify the element based on the electrondot structure at right.

Mercury has the lowest melting point of any metallic element, $-38.87^{\circ} \mathrm{C}$. Let $p$ represent the melting point in degrees Celsius of any other metallic element. Write an inequality that describes $p$.

After you fill in the element on the line, write the type of element ( prefix, root, combining form, suffix) you have used below the lines. Fill in the blanks.

Removing poison from tissue de/ ________ / ________

Atoms of the same element that differ in the number of neutrons they contain are called _.

Name the chemical element represented by the following symbol

$$\mathrm{Pb}$$