CHEM 100 Jeopardy - Atoms and Elements

Atoms

100

Name the three sub-atomic particles in an atom?

proton, neutron, and electron

200

Within an atom, where are protons located?

The nucleus

300

Neutral atoms (of the same element) always have an equal number of which two sub-atomic particles?

protons and electrons

400

The ______ number (A) is the sum of the number of protons and neutrons.

mass number

500

Which element has an atomic number = 2? 

Helium

Isotopes

100

Which of the following is true about isotopes?

_{A. They have the same number of neutrons}

_{B. They have a different atomic number}

_{C. They have the same number of protons}

C. They have the same number of protons

200

If an element has 20 protons, 20 electrons, and 20 neutrons, What is it's atomic number?

Atomic Number (Z) is 20 (the number of protons).

300

How many protons are there in the nucleus of a Hydrogen-3 (³H) atom?

All isotopes of hydrogen will have 1 proton in it's nucleus (³H is an isotope of hydrogen called tritium).

400

A neutral atom of sodium (Na) has an atomic number of 11 and a mass number of 23. Which of the following statements is correct?

_{A. An atom of sodium has 11 protons, 11 electrons, and 11 neutrons.}

_{B. An atom of sodium has 11 protons, 12 electrons, and 11 neutrons.}

_{C. An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.}

C. An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.

500

An atom of phosphorus has an atomic number of 15 and a mass number of 31. How many neutrons does it contain?

16 neutrons

Ions

100

If a neutral atom loses an electron it becomes a(n) _______.

_{A. anion}

_{B. cation}

_{C. isotope}

B. cation

200

What is the charge of Calcium (Group 2 of the Periodic Table) when it becomes an ion?

Ca⁺²

300

Does oxygen give or take electrons when he becomes an ion?

Take (O^2-)

400

The ion Cl^-  (formed from a neutral chlorine atom) would be called a(n) _________.

_{A. Anion, because it lost an electron}

_{B. Cation, because it lost an electron}

_{C. Anion, because it gained an electron}

C. Anion, because it gained an electron

500

If Magnesium’s (Mg) atomic number is 12, what is the total number of electrons in an Mg⁺² ion?

10 electrons

Elements

100

Is Iron an element, compound, or mixture?

element

200

The elements located in Group 18 of the Periodic Table are called the _____________. 

Noble Gases

300

Is a molecule oxygen (O₂) an element, compound, or mixture?

Element - made of only oxygen atoms

400

How many elements are in the Periodic Table?

118 Elements

500

I am the Group 17 element located in the second Period of the periodic table. Who am I? 

_{A. Oxygen}

_{B. Chlorine}

_{C. Fluorine}

C. Fluorine

Periodic Table

100

In the Periodic Table, the elements are arranged in _____________.

_{A. alphabetical order}

_{B. order of increasing atomic number}

_{C. order of percent composition}

B. order of increasing atomic number

200

An element in the upper right corner of the periodic table is _________.

_{A. definitely a non-metal}

_{B. definitely a metal}

_{C. definitely a solid at room temperature}

A. definitely a non-metal

300

An element that appears in the lower left corner of the periodic table is ___________.

_{A. definitely a metalloid}

_{B. definitely a gas at room temperature}

_{C. definitely a metal}

C. definitely a metal

400

Generally speaking, metals on the periodic table form ________.

_{A. cations}

_{B. anions}

_{C. a rock band}

A. cations

500

Most elements on the Periodic Table are?

_{A. non-metals}

_{B. metalloids}

_{C. metals}

C. metals