Complete the following statement: (4.2,4.5)

a. The number of protons and neutrons in an atom is also the ________ number.

b. The elements in Group 7A(17)are called the ________.

c. Elements that are shiny and conduct heat are called ________.

Short Answer

Expert verified

a. Mass.

b. Halogens.

c. Metals.

Step by step solution

01

Part (a) step 1: Given Information 

We need to complete the number of protons and neutrons in an atom is also the ________ number.

02

Part (a) step 2: Explanation

Now,

The number of protons and neutrons in an atom is called themassnumber.

03

Part (b) step 1: Given Information 

We need to complete the elements in Group 7A(17) are called the Metals.

04

Part (b) step 2: Explanation 

Here,

The elements of the Group 7A(17) are called halogens.

05

Part (c) step 1: Given Information 

We need to complete elements that are shiny and conduct heat are called ________.

06

Part (c) step 2: Explanation 

Here,

The elements that are shiny and conduct heat are called ________.

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