Semester 1 PreAs

Front

What happens to the charge of a neutral atom when an electron is added?

Back

The charge becomes negative.

Front

Where do the most reactive metals appear on the periodic table?

Back

On the left side.

Front

Which element is classified as a metal: I, Si, Ca, or B?

Back

Ca (Calcium) is a metal.

Front

What changes in a neutral atom when a neutron is added?

Back

The atomic mass increases.

Front

Where do the most electronegative elements appear on the periodic table?

Back

On the right side.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the periodic table's left side?

Back

It contains the most reactive metals.

Front

What defines a metal in terms of physical properties?

Back

Metals are typically shiny, malleable, ductile, and good conductors of heat and electricity.

Front

What is the difference between atomic number and atomic mass?

Back

Atomic number is the number of protons, while atomic mass is the total number of protons and neutrons.

Front

What happens to the charge of an atom when a proton is added?

Back

The charge becomes positive.