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Chapter 4: Q. 4.96 (page 132)

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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Most popular questions from this chapter

Complete the following table for the three naturally occurring isotopes of silicon, the major component in computer chips: 4.4,4.5

Complete the following table for atoms of essential elements in the body:

Indium consists of two isotopes, I49113nand I49115n. If the atomic mass for indium on the periodic table is 114.8, are there more atoms of I49113nor I49115nin a sample of indium?

Match the subatomic particles (1to 3) to each of the descriptions below: (4.4)

1. protons 2. neutrons 3. electrons

a. atomic mass

b. atomic number

c. positive charge

d. negative charge

e. mass number - atomic number

Is each of the following statements true or false?

a. A proton and an electron have opposite charges.

b. The nucleus contains most of the mass of an atom.

c. Electrons repel each other.

d. A proton is attracted to a neutron.
See all solutions

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