Physical Science Mid-term 2019

The number 0.487 has how many significant figures?

Any factor in an experiment that can change is referred to as:

Valence electrons determine an atom's

What is the smallest part of the atom?

Scientist test a hypothesis by

What is the curved shape of the liquid in a graduated cylinder called?

What does it mean to say that "no experiment is a failure?"

The order of the elements in the periodic table is based on

Which of the following pieces of lab equipment can NOT measure volume?

The force with which gravity pulls on a quantity of matter

Which unit is used to measure the length of a book case?

Technology can best be defined as:

Which of the following is an alkali metal?

An atom's mass number equals the number of

Oxygen's atomic number is 8. This means that oxygen has

What is the name of the elements in groups 3-12?

Which of the following has a greater atomic number?

What is the oxidation number of the halogen family?

The first step of the scientific method is

How many valence electrons does sodium have?

The charge of an electron is

Which unit is used for mass measurement?

Which unit is used to measure the mass of a computer?

The number 4.065 has how many significant figures?

A series of logical steps that is followed in order to solve a problem

If an experiment fails to prove the hypothesis true a scientist should

What is the formula for area?

Atoms in the same group have the same number of

The d orbitals would not be found at which energy level?

Which piece of laboratory equipment is used to measure mass?

Group 15 has how many valence electrons?

A region in which there is a high probability of finding an electron

Often atoms will join so that each atom will have:

What is the formula for volume?

A possible answer to a scientific question is called a

Atoms of the alkaline earth metals have how many valence electrons?

Carbon and other non metals are found in which area of the periodic table?

What is the symbol for Lead?

The number 50.775 has how many significant figures?