Atomic Structure Practice

The number 16 for the atomic element sulfur is the

• ionic number

• isotope

• atomic mass

• atomic number

Tags

NGSS.MS-PS1-1

Subatomic particle that has a positive charge

• electron

• poitron

• neutron

• proton

The center of an atom is called the ________________.

• electron cloud

• nucleus

• neutrion

• nuetron

Tags

NGSS.HS-PS1-8

The vertical (up and down) columns that contain elements with similar properties in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

The atomic number tells you what?

• only the number of electrons

• only the number of protons

• only the number of neutrons

• the number of both electrons and protons

The Modern Periodic Table of Elements is arranged by

• atomic mass
• atomic number
• valence electrons
• number of isotopes

What does 12.011 represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

Tags

NGSS.MS-PS1-1

What does the 6 represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

Tags

NGSS.MS-PS1-1

The horizontal (left to right) rows in the Periodic Table are called

• groups

• families

• periods

• atomic numbers

An element has an atomic number of 20. This means it has:

• 20 atoms in it.

• 20 protons.

• an atomic mass of 20.

• 20 neutrons.