Atom and periodic table

An atom with atomic number 6 would have how many protons?

• 6
• 12
• 3
• cannot be determined 

How many electrons does a Copper atom have?

• 63
• 29
• 92
• 34

Tags

NGSS.HS-PS1-1

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Tags

NGSS.MS-PS1-1

A neutral atom of the isotope ²⁶Mg would consist of

• 12 protons, 26 neutrons, 26 electrons
• 26 protons, 12 neutrons, 26 electrons
• 26 protons, 14 neutrons, 14 electrons
• 12 protons, 14 neutrons, 12 electrons

What is the atomic number of this atom?

• 2
• 4
• 6
• none of the above

Tags

NGSS.HS-PS1-1

Identify this atom.

• Lithium
• Boron
• Carbon
• Neon

Tags

NGSS.HS-PS1-1

Identify this atom.

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.HS-PS1-1

What determines an element's identity?

• The number of protons
• The number of electrons
• The number of neutrons
• The number of valence electrons

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.HS-PS1-8

O is the symbol for what element?

• Orduvicium
• Oxygen
• Osmium
• Holonium