SOL 6.5 Review

How is the periodic table organized?

• the number of atoms in the element's nucleus

• the number of neutrons in each element's nucleus

• the number of protons in the element's nucleus

• the number of protons and neutrons in the element's nucleus

The charge of the nucleus of an atom is due to the presence of-

• positive protons

• neutral nuetrons

• negative electrons

• negative protons

What is the smallest part of an element that has all of the properties of that element?

• alloy

• atom

• electron

• isotope

What is the center of an atom called?

• cortex

• nucleus

• neutron

• proton

The atoms of one element differ from those of another element in the number of protons.

• True

• False

If an element has the atomic number of 13 and a mass of 27, the number of neutrons will be-

• 13

• 14

• 27

• 40

Which statement best describes an atom?

• protons & electrons grouped together in a random pattern

• protons & electrons grouped together in an alternating pattern

• a core of protons and neutrons surrounded by electrons

• a core of electrons and neutrons surrounded by protons

Tags

NGSS.MS-PS1-1

The number of atoms in a molecule is displayed by the-

• subscript

• coefficient

• superscript

• codependent

Tags

NGSS.MS-PS1-1

Ar, K, and Si are symbols for-

• compounds

• particles

• elements

• molecules

Tags

NGSS.MS-PS1-1

In a chemical reaction, the Law of Conservation of Matter states-

• matter is not created or destroyed

• matter is not changed

• matter can be destroyed

• mass changes constantly

Tags

NGSS.MS-PS1-5