9.29.F - Quiz: Atoms and the Periodic Table

Who remade the periodic table based on the atomic number?

Henry Moseley

What is an atom made of? Please respond in 1-2 complete sentences using your best grammar.

My Answer: An atom is made of a neutron, proton, electron, and nucleus.

Are humans made of atoms? Please respond in 1-2 complete sentences using your best grammar.

My Answer: Yes, humans are made of millions if not billions of atoms.

What is the symbol for the element with the atomic number 8?

O

Lithium, sodium, and potassium are examples of ____________.

alkali metals

The elements in Group 1A of the periodic table, except for hydrogen, are called the _____________________.

alkali metals

Something that can be drawn out into wire without breaking is called ______________.

ductile

Which is a characteristic of a metal?

it is a good conductor of electricity

Describe the composition of the nucleus of an atom.

it is composed of protons and neutrons

Groups 1 and 2 on the periodic table contain what atom type?

metals

Members of the alkaline earth elements have several things in common. They are __________.

metals with two valence electrons

Which subatomic particle has a neutral charge?

neutron

Protons are positively charged and repel other protons. Which other particle is found in the nucleus and separates protons so that the strong force can hold the nucleus together?

neutrons

At the center of every atom lies a small, dense ____________ that is positively charged.

nucleus

The periodic table is a/an ________________________ used in most chemistry classrooms and labs.

organizational tool

An atom of the element ____________ has an average atomic mass of about 16 amu.

oxygen

Which subatomic particle is positively charged and found in the nucleus?

proton

The atomic number is the number of _________ in an atom.

protons