Gen Chem Atom and Nuclear Assessment Practice

How many neutrons are in the nucleus of the atom ¹⁷₉F?

• 17
• 9
• 8
• 7

Tags

NGSS.MS-PS1-1

Which radioactive decay mode does not result in a different atomic number or atomic mass?

• alpha decay
• beta decay
• gamma decay
• all of the preceding

________ is the process in which an unstable atomic nucleus emits charged particles and energy.

• radioactivity
• combustion
• neutralization
• ionization

What type of radiation is the least penetrating?

• alpha decay
• beta decay
• delta decay
• gamma decay

Tags

NGSS.HS-PS1-8

What type of radiation is the most penetrating?

• alpha decay
• beta decay
• delta decay
• gamma decay

Tags

NGSS.HS-PS1-8

Isotopes of uranium have different

• atomic numbers
• numbers of neutrons
• numbers of planetary electrons
• numbers of protons

The number of protons in the nucleus of an atom of atomic number 32 is

• 4
• 32
• 42
• 73

Atoms of ²³⁵U and ²³⁸U differ in structure by three (3)

• electrons
• isotopes
• neutrons
• protons

The emission of a beta particle results in a new element with the atomic number

• increased by 1
• increased by 2
• decreased by 1
• decreased by 2

As depicted in ¹⁴₆C, the 14 is the

• atomic number
• atomic mass
• isotope number
• number of protons and electrons