Chemistry test review

Which of the following is a homogeneous mixture?

Lithium usually has 3 protons, 4 neutrons and 3 electrons.  What is it's atomic mass?

Which of the following is a homogenous mixture?

The size of the atom _____________ as you move down a group in the periodic table

Which of the following is the chemical formula for a compound?

Lithium usually has 3 protons, 4 neutrons and 3 electrons.  What is it's atomic number?

Which group of elements is the most reactive?

The atomic mass tell us the number of...

What does not live in the nucleus?

Which of the following symbols represent the element with an atomic mass of 14?

Which of the following is a pure substance?

Which is not a component of the particle theory of matter

The two elements, carbon and oxygen, bond together to from

Which of the following is a compound?

Which chemical formula below represents the bonding between 3 atoms of Hydrogen and 1 Nitrogen?

In general, metals are NOT

Which of the following elements is a non-metal?

Which of the following is a chemical property

Which one of these is a physical property?

Which of the following groups of elements all have 7 electron in the outside energy level?

Which of the following atoms is the largest in size?

What particles make up the atomic nucleus?

How many atoms of nitrogen are found in C₈H₉NO₂ (Tylenol)?

What is true about all elements in the same period?

What is the maximum number of electrons that the fourth energy level can hold

The first family/group on the left of the periodic table is called the:

How many electrons are in each energy level (starting from 1st energy level) in potassium?

How many atoms are is the CO₂ molecule

Which of the following is a heterogenous mixture?

Which of the following is an element?

How many atoms are in  a molecule of  NaHCO3

The noble gasses are:

Which of the following are false about non-metals?

How many atoms are is the H₂SO₄ molecule?

What is the atomic mass of an atom with 6 protons, 6 electrons, and 7 neutrons?