Study Guide

Front

What is a property that depends on the amount of material present?

Back

The heat required to melt an ice cube is a property that depends on the amount of material present.

Front

What observation contributed to Dalton’s model of the atom?

Back

A pair of elements can form several compounds that are composed of different ratios of the elements.

Front

What does the table of contributions to atomic theory indicate?

Back

One discovery was important for another.

Front

What is the electron configuration of an atom with 29 electrons?

Back

1s2 2s2 2p6 3s2 3p6 4s1.

Front

If a block of iron has a density of 7.75 g/mL, what would be the density of a smaller block if it is cut in half?

Back

The density would still be 7.75 g/mL.

Front

Define density.

Back

Density is the mass of an object divided by its volume, typically expressed in g/mL or kg/m³.

Front

What is Dalton's Atomic Theory?

Back

Dalton's Atomic Theory states that all matter is made of atoms, which are indivisible and indestructible particles.

Front

What is the significance of the electron configuration?

Back

Electron configuration determines how atoms interact and bond with each other.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.