Periodic Table and Atoms Test

Which statement correctly describes the location and charge of the electrons in an atom?

• The electrons are inside the nucleus and have no charge.

• The electrons are outside the nucleus and have no charge.

• The electrons are outside the nucleus and have a negative charge.

• The electrons are inside the nucleus and have negative charge.

Which particles are positively charged and located in the nucleus of an atom?

• Atom

• Mass

• Proton

• Neutron

What are the two subatomic particles found inside the nucleus?

• Protons and electrons

• Electrons and neutrons

• Protons and neutrons

• Electrons and ions

The nucleus  __________.

• bonds two atoms together
• orbits around the center of the atom
• is in the center of the atom

Helium (He) is the second element on the Periodic Table. How many protons would a helium atom have?

• 0

• 1

• 2

• Not enough information

What is the atomic number of Oxygen?

• 8

• 15

• 16

• 7

If I had a mystery atom, and I knew it had 11 protons and a mass of 20, how many electrons does it have?

• 11

• 20

• 9

• 31

Most of the elements on the periodic table are classified as _____.

• Metals
• Nonmetals
• Metalloids
• Periods

This group of elements sit along a stair step line on the periodic table and have properties of both metals and nonmetals. _________________________

• luster

• metals

• nonmetals

• metalloids

From this element key of Nitrogen, determine the atomic mass of nitrogen

• 7

• 7.01

• 14.01

• 21.01