Periodic Table Regents Prep

Question 1

The elements on the Periodic Table are arranged in the order of increasing

Accepted Answer

atomic number

Question 2

Element X reacts with copper to form the compounds CuX and CuX2. Which group is element X found

Accepted Answer

Group 17

Question 3

carbon, diamond and graphite, differ in their physical properties due to

Accepted Answer

crystal structures

Question 4

The valence electron of which atom in the ground state has the greatest amount of energy?

Accepted Answer

cesium

Question 5

Which ion has the smallest radius?

Accepted Answer

O2-

Question 6

In the ground state, an atom of each of the elements in Group 2 has a different

Accepted Answer

first ionization energy

Question 7

The number of valence electrons in each atom of an element affects the element's

Accepted Answer

chemical properties

Question 8

The trend for first ionization energy and electronegativity values in order from top to bottom?

Accepted Answer

First ionization decreases, the electronegativity decreases.

Question 9

Which two gases can not be broken down by chemical means?

Accepted Answer

Xe and He

Question 10

The element sulfur is classified as a

Accepted Answer

nonmetal

Question 11

At STP, which element is a good conductor of electricity?

Accepted Answer

silver

Question 12

What is the number of electrons in an Al3+ ion?

Accepted Answer

10

Question 13

Which elements have the most similar chemical properties?

Accepted Answer

oxygen and sulfur

Question 14

Which atom has the largest atomic radius?

Accepted Answer

francium

Question 15

Which atom in the ground state has a stable electron configuration?

Accepted Answer

neon

Question 16

Which element is a liquid at STP?

Accepted Answer

bromine

Question 17

At STP, a 1-liter sample of Ne(g) and a 1-liter sample of Kr(g) have the same

Accepted Answer

number of atoms

Questions 17