ATOMIC STRUCTURE AND PERIODIC TABLE

What is the basic unit of matter?

• Atom

• Molecule

• Electron

• Proton

What defines an element on the periodic table?

• Atomic number

• Atomic mass

• Number of neutrons

• Number of electron shells

What do elements in the same group of the periodic table have in common?

• Same number of electrons in their outermost shell

• Same atomic mass

• Same number of protons

• Same number of electron shells

What is the significance of the periodic table's arrangement?

• It helps predict the properties of elements and their compounds

• It shows the atomic mass of elements

• It lists elements in alphabetical order

• It categorizes elements by color

Which block in the periodic table represents elements with similar electron configurations?

• s-block

• g-block

• h-block

• j-block

Tags

NGSS.HS-PS1-1