Which of the following is the correct symbol for sodium?

• S

• Na

• So

• N

Tags

NGSS.MS-PS1-1

The atomic number of Beryllium is 4. Its mass number is 9. How many neutrons does an atom of Beryllium have in its nucleus?

• 4

• 4.0122

• 5

• 6

Tags

NGSS.MS-PS1-1

The atomic number of an element is the number of _______ it has.

• protons

• neutrons

• electrons

• protons and neutrons

Tags

NGSS.MS-PS1-1

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

• protons

• protons and neutrons

• electrons

• neutrons

Tags

NGSS.MS-PS1-1

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

• groups and periods

• periods and groups

• categories and periods

• categories and groups

Which element would you expect to be located in group 2 of the periodic table?

• Lithium

• Carbon

• Sulfur

• Beryllium

Which of the following subatomic particles is negatively charged?

• neutron

• proton

• electron

• megatron

Tags

NGSS.MS-PS1-1

Which particle does not have a charge?

• neutron

• proton

• electron

• megatron

Tags

NGSS.MS-PS1-1

Which particle has a positive charge?

• neutron

• electron

• proton

• megatron

Tags

NGSS.MS-PS1-1

An atomic nucleus has a _________ charge.

• positive

• negative

• neutral

• non

Tags

NGSS.MS-PS1-1