Q1 Day 2 Review

Front

What is a property of metals?

Back

Malleable: Metals can be hammered or pressed into shapes without breaking.

Front

What best describes a chemical reaction?

Back

A process where substances change into new substances with different properties.

Front

Which model of the atom was proposed by Niels Bohr?

Back

Planetary model: Electrons orbit the nucleus in defined paths.

Front

What is the charge of an electron?

Back

Negative: Electrons carry a negative electric charge.

Front

What is the chemical symbol for the element with atomic number 1?

Back

H: The symbol for Hydrogen.

Front

What does malleable mean in terms of metals?

Back

Malleable means that metals can be shaped or deformed without breaking.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the chemical composition, while a chemical change results in new substances.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties, allowing for predictions about behavior.

Front

What is an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net charge.