Chemistry Final (MC) No Thermo/Rates

Front

What is electronegativity?

Back

The ability of an atom to attract/accept electrons.

Front

What is the name of N2O3?

Back

Dinitrogen trioxide.

Front

What is the symbol for the element in period 4, group 6?

Back

Cr (Chromium).

Front

Do the following atoms belong to the same element? Atom 1: Aluminum-27, Atom 2: An atom with 14 protons and 13 neutrons. Explain.

Back

No, because they have different number of protons.

Front

If X is the symbol for an element, which of the following two symbols represent isotopes of the same element? I. 77 35 X II. 77 33 X III. 81 37 X IV. 81 35 X

Back

I and IV.

Front

Define an isotope.

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.