Gen Chem Practice Exam

atomic number 9, mass number 18, charge of -1

A= Z= X= C=

Answer explanation

Z is the atomic number

A is the mass

C is the charge

X is the element symbol

atomic number 43, mass number 99, charge of 7+

A= Z= X= C=

Answer explanation

Z is the atomic number

A is the mass

C is the charge

X is the element symbol

atomic number 53, atomic mass number 131, charge of 1−

A= Z= X= C=

Answer explanation

Z is the atomic number

A is the mass

C is the charge

X is the element symbol

atomic number 81, atomic mass number 201, charge of 1+

A= Z= X= C=

Answer explanation

Z is the atomic number

A is the mass

C is the charge

X is the element symbol

Express 704 in scientific notation with correct

significant figures

7.04x10^_ or 7.04e_

Express 0.03344 in scientific notation with correct

significant figures

3.344x10^_ or 3.344e_

Express 547.9 in scientific notation with correct

significant figures

5.479x10^_ or 5.479e_

Express 22086 in scientific notation with correct

significant figures

2.2086x10^_ or 2.2086e_

Express 0.0000000651 in scientific notation with correct

significant figures

6.51x10^_ or 6.51e_

Convert 5.40 hours to seconds