Atoms and periodic table

Which of the following is the correct symbol for sodium?

• S

• Na

• So

• N

The mass number of an element is the amount of _________ it has.

• protons

• protons and neutrons

• electrons

• neutrons

Which term describes Neon?

• metal

• metalloid

• transition metal

• nonmetal

Which of the following elements is an example of an element that conducts electricity?

• Aluminum

• Helium

• Boron

• Neon

The periodic table is organized into columns called _______ and rows called ______.

• groups / periods

• periods / groups

• categories / periods

• categories / groups

Which element is part of the alkaline family of the periodic table?

• Lithium

• Carbon

• Sulfur

• Beryllium

Which of the following subatomic particles is negatively charged?

• neutron

• proton

• electron

• megatron

Which particle does not have a charge?

• neutron

• proton

• electron

• megatron

Which particle has a positive charge?

• neutron

• electron

• proton

• megatron

An atom's nucleus has a _________ charge.

• positive

• negative

• neutral

• non