June 2002 Regents 1-10

Other Regents Exams

Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50

 

Highlight to reveal answers and explanations

Questions

Answer Explanations
1 What is the electron configuration of a sulfur atom in the ground state?

(1) 24       (3) 284
(2) 26       (4) 286

4 Ground State configurations are listed on the Periodic Table for each element.
2 The modern model of the atom shows that electrons are

(1) orbiting the nucleus in fixed paths
(2) found in regions called orbitals
(3) combined with neutrons in the nucleus
(4) located in a solid sphere covering the nucleus

2 Electrons are found in orbitals outside the nucleus.

Protons and neutrons are located in the nnucleus.

3 Which compound contains ionic bonds?

(1) NO       (3) CaO
(2) NO2      (4) CO2

3 Ionic compounds can be easily identified because they are on opposite ends of the periodic table. One metals and one nonmetal.

**Note Incorrect answers are all covalent (2 nonmetals)

4 All the isotopes of a given atom have

(1) the same mass number and the same atomic number
(2) the same mass number but different atomic numbers
(3) different mass numbers but the same atomic number
(4) different mass numbers and different atomic numbers

3 Definition-Isotope

KNOW IT

5 What are two properties of most nonmetals?

(1) high ionization energy and poor electrical conductivity
(2) high ionization energy and good electrical conductivity
(3) low ionization energy and poor electrical conductivity
(4) low ionization energy and good electrical conductivity

1 Use Table S Pick a nonmetal (fluorine) and compare it to a Metal (sodium)
 6 Which element is classified as a noble gas at STP?

(1) hydrogen     (3) neon
(2) oxygen        (4) nitrogen

3 noble gas-Group 18
4 Nitrogen=14

hydrogen= 3 *1=3

NH3=17

(part/whole) x100

8 Metallic bonding occurs between atoms of

(1) sulfur       (3) fluorine
(2) copper     (4) carbon

2 Metals, so pick a metal
9 Atoms of the same element that have different numbers of neutrons are
classified as

(1) charged atoms      (3) isomers
(2) charged nuclei      (4) isotopes

 

4 Definition of Isotope

KNOW IT

10 Compared to the radius of a chlorine atom, the radius of a chloride ion is

(1) larger because chlorine loses an electron
(2) larger because chlorine gains an electron
(3) smaller because chlorine loses an electron
(4) smaller because chlorine gains an electron

2 Metals lose electrons and get smaller 

Nonmetals gain and get bigger

 

 

Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50

 
Back to Regents Exams