2. Atoms & Elements

Nitrogen has an atomic number of seven. How many electron shells does it likely have?

What is the smallest particle of an element that still retains the properties of that element?

How many protons are in an atom of magnesium?

Which part of the atom is primarily responsible for chemical reactions between atoms?

Why is a complete atom considered to be electrically neutral?

How many electrons does a neutral fluorine atom have?

Which of the following particles make up the nucleus of an atom?

What is the smallest particle of an element that still retains all the properties of the element?

How many protons are present in a lithium atom?

In which part of the Earth is phosphorus primarily found?

Which subatomic particle is found in the nucleus of an atom and has a positive charge?

How many protons are in an atom of lithium?

Which one of the following is the smallest unit of matter that has all the properties of an element?

Which statement correctly describes the distribution of electrons in a water molecule?

What is the overall charge of a neutral atom?