Molecular structure

Question 1

What is the molecular structure of a central atom surrounded by two outer atoms with no lone pairs?

Answer 1

linear

Question 2

What is the molecular structure of a central atom surrounded by three outer atoms and no lone pairs?

Answer 2

trigonal planar

Question 3

What is the molecular structure of a central atom surrounded by two outer atoms and one lone pair?

Answer 3

bent

Question 4

What is the molecular structure of a central atom surrounded by four outer electrons and no lone pairs?

Answer 4

tetrahedral

Question 5

What is the molecular structure of a central atom surrounded by three outer atoms and one lone pair?

Answer 5

trigonal pyramidal

Question 6

What is the molecular structure of a central atom surrounded by two outer atoms and two lone pair?

Answer 6

bent

Question 7

What is the molecular structure of a central atom surrounded by five out atoms and no lone pairs?

Answer 7

trigonal bi-pyramidal

Question 8

What is the molecular structure of a central atom surrounded by four outer atoms and one lone pair?

Answer 8

seesaw

Question 9

What is the molecular structure of a central atoms surrounded by three outer atoms and two lone pairs?

Answer 9

t-shaped

Question 10

What is the molecular structure of a central atom surrounded by two outer atoms and three lone pairs?

Answer 10

linear

Question 11

What is the molecular structure of a central atom surrounded by six outer atoms and no lone pairs?

Answer 11

octahedral

Question 12

What is the molecular structure of a central atoms surrounded by five outer atoms and one lone pair?

Answer 12

square pyramidal

Question 13

What is the molecular structure of a central atom surrounded by four outer electrons and two lone pairs?

Answer 13

square planar

Question 14

What is the energy that is released when a gas phase atoms picks up an electron? X + e- –> X- + energy

Answer 14

Electron Affinity

Question 15

What is the general trend of electron affinity?
What is the general trend of effective attraction

Answer 15

increases up a column and across a row

Question 16

What is the chemical and physical properties associated with metals?

Answer 16

Metallic Character

Question 17

What is the general trend of metallic character?

Answer 17

increases down a column and from right to left in a row

Question 18

What is a metal and a non metal bound together by electrostatic attraction?

Answer 18

Ionic Bond

Question 19

What are electrons that are found in fully filled shells?

Answer 19

Core electrons

Question 20

What are electrons that are found in partially filled shells that are higher in energy?

Answer 20

Valence electrons

Question 21

What gives rise to physical and chemical properties?

Answer 21

Configurations

Question 22

What is it called when core e- block the outer e- from experiencing the full charge of the nucleus?

Answer 22

Screening/ Shielding
Zactual> Zeff>1

Question 23

What is the periodic trend of valence electrons attrition to nucleus? Distance? z?

Answer 23

Valence electrons: increase up and across
Distance; decreases up a column
Charge: increases across a period

Question 24

What is ionization energy?

Answer 24

Maximum energy required to remove an e- from an elements as a gas phase atom; X+energy>X+ + e-

Question 25

What is the periodic ionization trend?

Answer 25

increases up and across